ORDER
In 1994, defendant James Lee Tram-mell, Jr. was convicted and sentenced for drug trafficking and conspiracy, as well as several firearms charges. His sentences for the trafficking and conspiracy counts were later vacated on a § 2255 motion. Trammell is now due to be resentenced. Before the court are several disputed Sentencing Guidelines issues that must be resolved prior to resentencing.
I. Background1
On February 24, 1994, Trammell and 14 co-defendants were charged with violations of the Controlled Substances Act in a 28-count superceding indictment. Count 1 charged Trammell and his co-defendants with conspiracy to distribute and possess with intent to distribute cocaine base; counts 2 through 27 charged various firearm violations and drug trafficking offenses; and count 28 sought the forfeiture of interest in certain real and personal property. The counts specific to Trammell are as follows. Counts 2 through 4 charged Trammell with various firearms offenses; count 18 charged Trammell with knowingly and intentionally distributing 4.544 grams of cocaine base on July 20, 1993; and count 24 charged Trammell with knowingly and intentionally distributing 4.712 grams of cocaine base on September 22,1993.
The charges stemmed from drug-distribution activities in West Shawmut, a small, densely populated community located in the southwest part of Lanett, Alabama. During the period of the conspiracy, the defendants conducted an open-air drug market in two West Shawmut areas called the “Hole” and the “Dope Zone.”
Law enforcement personnel, with the assistance of confidential informants, made controlled buys of crack from drug traffickers in the West Shawmut community. Three or more confidential informants assisted law enforcement in making the controlled buys. Together, they assisted in *1217making approximately 16 controlled buys over approximately six months.
The evidence at trial demonstrated a loosely formed hierarchical conspiracy. Level-one “runners” were typically crack cocaine addicts who sold $20 rocks on the streets or took customers who wanted to make purchases for larger amounts to level-two dealers. Runners were typically paid with crack or small amounts of money for their efforts. Level-two, or mid-level, dealers sold one-eighth, one-quarter, and one-half ounces of crack cocaine. They employed these runners and also supplied the runners with small quantities of crack cocaine to sell. These level-two dealers relied upon level-three dealers — those who sold a minimum quantity of an ounce (roughly 28 grams) of crack or more — for their supply of crack.
The government’s theory of the case at trial was that Trammell was at least a level-three dealer who dealt only in larger amounts from his residence. During the government’s case-in-chief, confidential informant Nichael Welch testified that he purchased crack from Trammell at his residence on two occasions, in amounts that were later determined to be 4.544 and 4.712 grams.2 In addition, evidence was presented indicating that a search warrant was conducted on Trammell’s home on January 28, 1994, producing, among other things, ammunition, a set of electronic scales, and a hard off-white rock substance.3
Trammell was convicted of conspiracy (Count 1), the weapons charges (Counts 2, 3, and 4) and one of the two distribution charges (Count 24). He was acquitted on the other distribution charge (Count 18).
On June 23, 1994, United States District Judge Robert E. Varner found that Tram-mell was accountable for at least 500 grams but less than 1.5 kilograms of cocaine base, but did not base this decision on any individualized findings.4 He then sentenced Trammell to a mandatory term of life imprisonment on the conspiracy count (Count l),5 a term of 293 months’ imprisonment on the drug distribution conviction (Count 24), and terms of 60 months’ imprisonment for each of the gun-possession offenses (Counts 2-4), to run concurrently.
After the Eleventh Circuit affirmed his convictions and sentences, United States v. Trammell, 107 F.3d 23 (11th Cir.1997), and after the case was reassigned from Judge Varner to the undersigned, Tram-mell filed a petition pursuant to 28 U.S.C.A. § 2255 on May 29, 2001, alleging, among other things, that his counsel was ineffective for failing to challenge on appeal the quantity of cocaine attributable to him for sentencing purposes, and for failing to challenge the timeliness of the government’s notice of its intent to rely upon *1218prior felony drug convictions for enhancement purposes.6 The magistrate judge agreed with both of those arguments and recommended that the district court vacate Trammell’s sentences on the conspiracy and distribution counts (Counts 1 and 24). This court then issued an opinion adopting the report and recommendation.7
At Trammell’s resentencing hearing on January 31, 2005, this court identified four factual and legal issues in dispute that must be resolved before he can be resen-tenced: (1) the quantity of drugs attributable to Trammell for sentencing purposes; (2) whether Trammell is subject to a two-level firearm enhancement pursuant to U.S.S.G. § 2Dl.l(b)(l);8 (3) whether Trammell is subject to a three-level “supervisory role” enhancement pursuant to U.S.S.G. § 3Bl.l(b);9 and (4) whether the sentences imposed should run consecutively or concurrently.10
At that same hearing, the court heard testimony from Stanley Quincey Johnson, a co-defendant of Trammell’s who later received a drastically reduced sentence in exchange for cooperating with the government. The court also heard the testimony of Robert Chambers of the Alabama Alcoholic Beverage Control Board and Michael Dixon of the Alabama Bureau of Alcohol, Tobacco and Firearms, both of whom were involved in the investigation of the West Shawmut drug conspiracy.
The court has considered the testimony of these witnesses, as well as both parties’ briefs and oral arguments. In addition, it has reviewed the trial, sentencing and re-sentencing transcripts for Trammell. Upon evaluation of these materials, the court now makes the following findings.
II. Findings
A. Drug Quantity11
Calculating the base offense level *1219for a defendant convicted of drug conspiracy and distribution requires an assessment of the quantity of illegal drugs attributable to that defendant.12 U.S.S.G. § 2Dl.l(a)(3) & (c). If in dispute, the government bears the burden of proving the drug quantity attributable to a defendant by a preponderance of the evidence. United States v. Rodriguez, 398 F.3d 1291, 1296 (11th Cir.2005). Application note 12 of the Commentary to U.S.S.G. § 2D1.1 states that “[w]here there is no drug seizure or the amount seized does not reflect the scale of the offense, the court shall approximate the quantity of the controlled substance.” In addition, the application note expressly notes that “[t]ypes and quantities of drugs not specified in the count of conviction may be considered in determining the offense level,” and refers the reader to U.S.S.G. § 1B1.3, the provision of the Guidelines addressing “Relevant Conduct.”
Section 1B1.3 provides that a defendant’s base offense level accounts for “all acts and omissions committed, aided, abetted, counseled ... or willfully caused by the defendant,” as well as, “in the case of a jointly undertaken criminal activity, ... all reasonably foreseeable acts and omissions of others in furtherance of the jointly undertaken criminal activity” that occurred “during the commission of the offense of conviction, in preparation for that offense, or in the course of attempting to avoid detection or responsibility for that offense.” U.S.S.G. § lB1.3(a)(l)(A) & (B).
Complementing subsection lB1.3(a)(l) is subsection lB1.3(a)(2), which specifically refers to offenses like Trammell’s convictions for drug conspiracy and distribution, which are grouped pursuant to U.S.S.G. § 3D1.2(d) for the purpose of determining a single base offense level. This subsection reinforces that the base offense level for such counts must include consideration of “all acts or omissions ... that were part of the same course of conduct or common scheme or plan as the offense of conviction.” U.S.S.G. § lB1.3(a)(2).
Application note 2 of the Commentary to § 1B1.3 provides that in order to determine the quantity of drugs attributable to a particular defendant involved in a conspiracy, a district court must engage in a two-step process. The court “must first determine the scope of the criminal activity the particular defendant agreed to jointly undertake.” U.S.S.G. § 1B1.3, n. 2; see also United States v. Ismond, 993 F.2d 1498, 1499 (11th Cir.1993). Application note 2 specifies that the scope of this activity “is not necessarily the same as the scope of the entire conspiracy.” Id. Second, once the extent of a defendant’s participation in the conspiracy is established, “the court can determine the drug quantities reasonably foreseeable in connection with that level of participation.” 993 F.2d at 1499.
Thus, in sum, the Guidelines require a district court to “attribute to a defendant all drugs foreseeably distributed pursuant to a common scheme of which that defendant’s offense of conviction was a part.” United States v. Butler, 41 F.3d 1435, 1443 (11th Cir.1995); see also United States v. Andrews, 953 F.2d 1312, 1319 (11th Cir.1992). This does not mean, however, that a defendant will be responsible for all of the drugs attributed to the entire conspiracy-
*1220i. Scope of Trammell’s participation
For several reasons, the scope of Trammell’s participation in the West Shawmut drug conspiracy is exceedingly difficult for the court to determine based on the evidence and testimony available.
First, unlike the co-defendants in this case who were previously resentenced by the court, very limited testimony regarding Trammell’s precise role in the conspiracy was presented at trial. Although the government suggested in its opening statement that Trammell ranked very highly in the West Shawmut hierarchy, the evidence with respect to the frequency and extent of his actual involvement in the conspiracy was limited.13 In fact, the court could only find two references to specific drug transactions involving Trammell at trial, both of which were conducted with confidential informant Nichael Welch, and both of which involved relatively modest amounts of crack cocaine.
The first transaction took place on July 20, 1993. Welch testified that he was instructed by agents to purchase crack cocaine from Trammell and that he enlisted the help of co-defendant Donald Lancaster, a level-one “runner,” to do so.14 Welch’s testimony, as well as the transcript of the tape recording of the incident, indicates that Lancaster attempted to discourage Welch from buying crack from Trammell, and instead suggested that Welch make a purchase from co-defendant JaJa Davis.15 Welch testified that despite Lancaster’s urging otherwise, the two of them initially went to Trammell’s house, but he was not home. After driving around for a while, Welch indicated that the pair later returned to Trammell’s house for a second time and found Tram-mell at home. Welch further explained that Trammell told him, “when I come out there [to purchase drugs], [I should] come by myself because Lancaster been wanting too much [cocaine as payment for his services as a runner].”16 In fact, Welch testified that although he purchased a quarter of an ounce of crack from Trammell that day, Trammell refused to give Lancaster any commission for bringing him Welch’s business.17
Welch’s testimony about this incident suggests little about the scope of Tram-mell’s involvement in the conspiracy. At most, Welch’s testimony indicates that Trammell sold a modest quantity of drugs from his home,18 that he had a contentious, on-and-off relationship with one of the level-one runners involved in the conspiracy, and that he apparently preferred to bypass certain “runners” in the conspiracy so as to avoid paying them commission, and encouraged customers to contact him directly when they wished to purchase crack. *1221Welch’s testimony about the crack purchase of July 20, 1993, provides no indication as to which members of the conspiracy Trammell dealt with, how frequently he sold or otherwise supplied crack, how often he employed the services of the runners, or the extent to which he knew about or agreed to be a part of the larger drug conspiracy in the West Shawmut community-
It appears from Welch’s testimony that he abided by Trammell’s wishes and contacted Trammell directly when he made his second purchase of crack cocaine from him on September 22, 1993. Welch indicated at trial that the only people present during that second transaction were himself, a man named Henry, who was not charged as part of the conspiracy, and Trammell. On that occasion, according to Welch, he again purchased a “quarter” of an ounce of crack cocaine from Trammell.19
Welch’s second purchase from Trammell is even less telling with respect to the scope of Trammell’s involvement in the conspiracy than his first. Aside from “Henry,” a person who has never been implicated in the conspiracy, Welch was alone when he made the purchase from Trammell. None of the other members of the conspiracy are mentioned during the conversation recorded by Welch during the transaction. Thus, the September 22, 1993, transaction is equally unhelpful to the court in determining the scope of Trammell’s involvement in the conspiracy.
The parties have directed the court to only one additional, relevant reference to Trammell in Welch’s testimony. Welch admitted on cross-examination that on January 21 and 25, 1994, he approached Trammell, defendant Algie Shealey, and defendant Johnson and told them that he would soon bring them a large sum of money to buy two ounces of crack cocaine.20 This reference is helpful to the court to the extent that it associates Tram-mell with two of the upper-level dealers in the conspiracy. However, Welch did not provide any further details regarding the nature of the association between these three men or how much crack cocaine each individual man agreed to supply. He also admitted that although it was discussed, the proposed transaction never took place.21
Other witnesses’ trial testimony is equally vague and unhelpful with respect to Trammell’s role in the conspiracy. For example, the testimony of cooperating co-conspirator Eltin Billingsley, a level-one runner, contains just one fleeting reference to Trammell. When asked, “What, if anything, did you see James Trammell do during the summer of 1993?,” Billingsley responded, “Nothing, really. I used to see James just riding through. Just riding through the neighborhood. Just hanging out.”22 The most the court can glean from this testimony is that, to the extent Tram-mell employed level-one runners, he did not work directly with Billingsley.
Aside from the testimony at trial, the government presented little additional testimony and evidence at Trammell’s resen-tencing hearing on January 31, 2005, that is helpful to the court in determining the scope of Trammell’s involvement in the conspiracy.
The government’s chief witness against Trammell, co-defendant Johnson, testified that Trammell regularly supplied him with drugs beginning in late 1989 or early 1990, *1222starting approximately one year after Johnson’s marriage in September 1988.23 He further testified that this business arrangement ended after approximately 18 months, when he and Trammell suffered a falling out due to a dispute involving Trammell’s girlfriend and Johnson’s wife.24 Regardless of whether Trammell began supplying drugs to Johnson in late 1989 or early 1990, it is clear from Johnson’s testimony that their business relationship lasted for a year and a half at most and therefore ended prior to the start of the conspiracy, on or about January 1,1992, as alleged in the superceding indictment.25 Furthermore, Johnson provided no indication that this arrangement was anything more than a private agreement with Tram-mell or was in any way linked to the broader conspiracy.
The government did question Johnson about the hierarchy of the West Shawmut conspiracy that arose after he and Tram-mell had their falling out. Johnson indicated that the conspiracy consisted of a multi-level hierarchy consisting of runners and dealers. When asked who the runners got drugs from, Johnson responded, “They come and get them from the dealer.”26 When asked who those dealers were, he responded, “I was one of them.... Mr. Trammell, JaJa [Davis], and [Timothy] Walker.” He provided no further specific information about the hierarchy or drug distribution network in West Shawmut.
He was then asked to describe what he observed about Trammell’s activities in the neighborhood during the period of the conspiracy itself, after the pair had their falling out.27 Johnson responded, “I seen him out in the neighborhood, you know, passing by.” Mr. Johnson was then specifically asked, “In terms of the runners that were there in Newts parking lot and over in the Hole, did you observe Mr. Trammell use those runners to help him sell dope?” He responded, “I would see one or two come to him down by the house ... come down there and get some [crack] and run up back up the road with it.”28
At best, Johnson’s response indicates that Trammell was a level-two dealer who supplied drugs to and employed the services of runners. However, Johnson’s testimony provides the court with little detail about specific breadth and nature of Tram-mell’s involvement so that “the court can determine the drug quantities reasonably foreseeable in connection with [Tram-mell’s] level of participation.” United States v. Ismond, 993 F.2d 1498, 1499 (11th Cir.1993).
In other words, while the court is convinced that Trammell dealt drugs from his home with some regularity and was at *1223least a tangential part of the West Shaw-mut drug conspiracy, the court is unable to reach any additional, specific conclusions with respect to the scope, including the depth and breadth, of Trammell’s involvement in the conspiracy itself. No evidence was introduced indicating when Trammell joined the conspiracy, how often he dealt with other members of the conspiracy during the period of the conspiracy, or how frequently he engaged in drug transactions.
If anything, the testimony of the other defendants involved in the conspiracy indicates that Trammell sometimes kept his distance from other members of the conspiracy. Although he was often seen out in the neighborhood, he seemed to dislike dealing with runners, encouraging at least one customer, Welch, to contact him directly to purchase drugs. Furthermore, he suffered a falling out with Johnson, one of the major and most well-known dealers in the conspiracy, prior to the date the conspiracy commenced.
Finally, as noted above, the superceding indictment alleges that the conspiracy began on or about January 1, 1992, and continued through February 4, 1994.29 The Presentence Investigation Report prepared by the United States Probation Office indicates that Trammell was incarcerated from April 6, 1992 through April 7, 1993.30 Thus, Trammell was incarcerated for a full year in the middle of the two-year conspiracy of which he was convicted. Based on the scant evidence available, the court cannot determine whether Trammell was a member of the conspiracy before he went to prison, or whether he joined the conspiracy at some point after his release.
In sum, after examining the evidence as a whole, the court is persuaded that Tram-mell was at least a level-two dealer who sold modest quantities of crack cocaine from his home, and who occasionally used the services of runners and other members of the conspiracy. In addition, the court’s conservative estimate is that Trammell was a member of the conspiracy for at least the last six months of its duration, assuming he joined the conspiracy no later than July 20, 1993, the first date on which the evidence definitively links him to the conspiracy by establishing that he conducted a drug transaction.
ii. Reasonably foreseeable drug quantities
Because the court has only a limited understanding of the scope of Tram-mell’s involvement in the conspiracy, it cannot determine with any certainty the amount of drugs Trammell could “reasonably foresee” other members of the conspiracy distributing.31 Where a drug amount is uncertain, courts are urged “to err on the side of caution and only hold the defendant responsible for that quantity of drugs for which [he] is more likely than not actually responsible.” United States v. Meacham, 27 F.3d 214, 216 (6th Cir.1994) (emphasis added). Therefore, the court will consider only drug quantities that can be directly linked to Trammell himself during the conspiracy in arriving at a total drug amount for sentencing purposes. See, e.g., United States v. Beasley, *12242 F.3d 1551, 1561-62 (11th Cir.1993) (where defendant’s scope of involvement in drug conspiracy was unclear, district court erred in holding him responsible for drug quantity attributable to entire conspiracy; record must support the specific amount of drugs attributable to the individual defendant); United States v. Milledge, 109 F.3d 312 (6th Cir.1997) (vacating and remanding defendant’s sentence for drug conspiracy where district court attributed drug quantity to defendant that far exceeded his scope and personal involvement in the conspiracy based on the available evidence). With that in mind, the court considers three key pieces of evidence.
a. Welch’s testimony at trial
As noted above, Welch testified that he purchased crack cocaine from Trammell on two separate occasions: 4.544 grams on July 20, 1993 (as alleged in Count 18 of the superceding indictment), and 4.712 grams on September 22,1993 (as alleged in Count 24 of the superceding indictment). Although Trammell was not convicted of conducting the July 1993 sale, the court finds Welch’s testimony credible, and is persuaded by at least a preponderance of the evidence that Trammell conducted that transaction. See United States v. Watts, 519 U.S. 148, 156, 117 S.Ct. 633, 637, 136 L.Ed.2d 554 (1997) (sentencing court may consider conduct of which defendant has been acquitted, so long as that conduct has been proved by a preponderance of the evidence).32 In addition, the jury found beyond a reasonable doubt that Trammell conducted the September 1993 transaction; the court is likewise persuaded. Therefore, the court finds Trammell accountable for these 9.256 grams of crack cocaine,
b. Substances seized on January 28, 1994
The court also acknowledges that ATF Agent Michael Dixon testified at the re-sentencing hearing about a search warrant he executed at Trammell’s residence on January 28,1994. The warrant resulted in the confiscation of, among other things, “one paper with crack cocaine and two plastic bags containing crack cocaine.”33 However, after examining the exhibits introduced into evidence at trial and resen-tencing, the court is unable to locate any lab results confirming that these seized substances contained crack cocaine or the weights of these substances.34
“Although sentencing may be based on fair, accurate, and conservative estimates of the quantity of drugs attributable to a defendant, sentencing cannot be based on calculations of drug quantities that are merely speculative.” United States v. Zapata 139 F.3d 1355, 1359 (11th Cir.1998) (quoting United States v. Brazel, 102 F.3d 1120, 1159 n. 32 & 33 (11th Cir.1997)). Given the absence of any lab *1225results confirming the nature and weight of the substances seized from Trammell’s home, as well as the lack of specific testimony regarding the quantity of drugs seized, the court is unable to determine the quantity of drugs found in Trammell’s home on January 28, 1994. The court cannot engage in pure speculation as to the quantity of drugs seized that day, and will therefore not include the substances seized on January 1994 in its computation of the drug quantity attributable to Tram-mell for sentencing purposes.35
c. Stanley Johnson’s testimony
As noted above, the government’s chief witness at the resentencing hearing was co-defendant Johnson. At the hearing, Johnson testified that his drug dealing relationship with Trammell began in either late 1989 or early 1990, approximately one year after he got married in September 1988.36 Johnson testified that he first approached Trammell about dealing drugs when he encountered financial problems, and that Trammell taught him how to “cook up” cocaine powder into crack cocaine and how to “break down” the crack into varying amounts to sell.37 He further testified that Trammell supplied him with approximately an ounce of crack cocaine per week, which Johnson in turn resold to customers, for a period of approximately 18 months.38 However, as noted above, Johnson also testified that his business relationship with Trammell ended after he and Trammell had a falling out over an incident involving Trammell’s girlfriend and Johnson’s wife. At that time, Johnson testified, he found a new source to supply him with crack cocaine.39 Furthermore, as noted above, at no point in his testimony did Johnson indicate that the arrangement he had with Trammell for those 18 months was related to the conspiracy that began in 1992 or that any of the other co-defendants in this case were involved in this particular arrangement.
Although Johnson was clear in his testimony that his relationship with Trammell began in late 1989 or early 1990 and continued for approximately 18 months, he also testified on direct examination that his relationship ended in 1992. However, on cross-examination, he resolved any date discrepancies and confirmed that he began dealing with Trammell in 1989 or 1990, and stopped dealing with him in 1991. When asked if he was sure about the date his involvement with Trammell ceased, he reiterated that their business relationship ended some time in 1991.40
*1226Based on Johnson’s testimony on direct and cross-examination, the court concludes that the 18-month period during which Trammell supplied Johnson with an ounce of crack cocaine per week ended some time in 1991, prior to the start of the conspiracy in 1992. Thus, the quantity of drugs Trammell supplied to Johnson during this 18-month period is outside the scope of the conspiracy and is not attributable to Trammell for resentencing purposes.41
In sum, based on its limited understanding of the scope of Trammell’s participation in the conspiracy as well as the paucity of evidence in the record directly linking Trammell to specific drug amounts, the court concludes that Trammell can be held accountable for 9.256 grams of cocaine for sentencing purposes. Tram-mell’s position in the hierarchy of the conspiracy suggests that he is responsible for a quantity of drugs greater than 9.256 grams. However, sentencing must be based on “fair, accurate and conservative estimates of the quantity of drugs attributable to a defendant.” Rodriguez, 398 F.3d at 1296. Without more information, 9.256 grams is the fairest, most accurate, and most conservative estimate of the quantity of drugs attributable to Trammell the court can make.
B. Firearm Enhancement
Trammell objects to the addition of a two-level enhancement to his base offense level due to possession of a dangerous weapon. Section 2D1.1(b)(1) of the Sentencing Guidelines states that a defendant’s base offense level is increased by two levels “if a dangerous weapon (including a firearm) was possessed.” Application note 3 in the Commentary to § 2D1.1 indicates that “[t]he enhancement for weapon possession reflects the increased danger of violence when drug traffickers possess weapons. The adjustment should be applied if the weapon was present, unless it is clearly improbable that the weapon was connected with the offense.”
At Trammell’s original sentencing, the court imposed this two-level enhancement based on the fact that one of Trammell’s co-defendants and conspirators, Ossie O. McCauley III, possessed and used a firearm in furtherance of the drug conspiracy on May 20, 1993. Specifically, testimony indicated that on that date, McCauley placed a gun to a confidential informant’s head and threatened to kill him, after he learned from another co-conspirator that the informant had been assisting the police in making a controlled buy of crack cocaine.42 Trammell argues that he cannot *1227be held responsible for this incident because he himself was not present at the time, and because there was no testimony at trial specifically linking him to McCau-ley.43
The Eleventh Circuit Court of Appeals has held that sentence enhancement for a co-conspirator’s firearms possession is appropriate if four conditions are proved by a preponderance of the evidence: “(1) the possessor of the firearm was a co-conspirator, (2) the possession was in furtherance of the conspiracy, (3) the defendant was a member of the conspiracy at the time of possession, and (4) the co-conspirator possession was reasonably foreseeable by the defendant.” United States v. Gallo, 195 F.3d 1278, 1284 (11th Cir.1999).
While the court finds the first two conditions easily satisfied by a preponderance of the evidence, it is unclear whether Tram-mell was a member of the conspiracy on May 20, 1993. As noted above, Trammell was incarcerated from April 6, 1992 until April 7, 1993. The first drug transaction specifically linking Trammell to the conspiracy took place on July 20, 1993. Therefore, the court previously concluded that Trammell joined the conspiracy no later than July 20, 1993. Because there is nothing in the record to suggest that Trammell had already joined the conspiracy by May 20, 1993, the court cannot conclude by a preponderance of the evidence that Trammell was a member of the conspiracy at that time. Therefore, he cannot be held responsible for McCauley’s possession of a firearm on that date.
However, the May 20, 1993, incident is not the only evidence in the record indicating that numerous firearms were possessed and used in connection with the West Shawmut drug conspiracy. For example, co-conspirator Billingsley testified at trial that, during the summer of 1993 in the “Hole” and the “Dope Zone,” he saw Fears with a .38 derringer; McCauley with a nine millimeter handgun and pistol-grip shotgun; and Davis with a nine millimeter handgun, which he utilized in one incident to shoot at a purchaser who attempted to take Davis’s drugs without paying for them.44 Furthermore, law enforcement agent Michael Dixon testified at trial that McCauley was in possession of an assault rifle in his bedroom when he was arrested on January 28, 1994, the same day Trammell was arrested.45
At a minimum, Trammell is subject to the two-level firearm enhancement as a result of McCauley’s possession of the firearm at the time of his arrest on January 28, 1994. At that time, there is no question that McCauley was Trammell’s co-conspirator. Furthermore, the presence of the weapon at McCauley’s home is sufficient evidence that his possession of it was in furtherance of the conspiracy. See United States v. Hall, 46 F.3d 62, 64 (11th Cir.1995) (handgun seized from dresser drawer of bedroom in house where drug activity took place justified two-level enhancement for possession of dangerous weapon). This is especially true given that McCauley was a level-two crack dealer who was known for brandishing weapons in drug distribution zones. Thus, it is not “clearly improbable” that McCauley’s possession of the firearm in his home was connected to his drug trafficking activity. See Commentary to § 2D1.1, Application Note 3 (“The adjustment should be applied if the weapon was present, unless it is clearly improbable that the weapon was connected with the offense”).
*1228Furthermore, there is no question that Trammell was a member of the conspiracy at the time the weapon was found in McCauley’s home. Finally, the Eleventh Circuit has held that “an act is reasonably foreseeable if it is ‘a necessary or natural consequence of the unlawful agreement.’ ” United States v. Cover, 199 F.3d 1270, 1275 (11th Cir.2000). Co-conspirator possession of firearms is a natural consequence of narcotics conspiracies because “[i]t is uniformly recognized that weapons are often as much ‘tools of the trade’ as the most commonly recognized narcotics paraphernalia.” United States v. Terzado-Madruga, 897 F.2d 1099, 1119 (11th Cir.1990). Given the ample testimony that weapons were used in furtherance of this conspiracy on a regular basis, the court has no difficulty concluding by a preponderance of the evidence that the possession of a firearm by McCauley was reasonably foreseeable to Trammell.46
C. Supervisory Role Enhancement
Trammell also objects to the government’s pursuit of an additional enhancement to his base offense level for his role as a “manager” or “supervisor” in the drug conspiracy. According to U.S.S.G. § 3Bl.l(b), a defendant is subject to a three-level increase if he “was a manager or supervisor (but not an organizer or leader) and the criminal activity involved five or more participants or was otherwise extensive.” That the conspiracy at issue involved more than five participants is undisputed. However, Trammell contends that there is no evidence to suggest that he played a leadership role in the conspiracy.47 The government argues that Tram-mell assumed a supervisory role in the conspiracy because he “sold cocaine base to persons brought to his home by street runners, and to those persons whom he directed to come to his home without an escort.”48
In United States v. Matthews, 168 F.3d 1234 (11th Cir.1999), the Eleventh Circuit held that “the management enhancement [under § 3Bl.l(b) ] is appropriate for a defendant who arranges drug transactions, negotiates sales with others, and hires others to work for the conspiracy.” Id. at 1249-50 (citing United States v. Stanley, 24 F.3d 1314, 1323 (11th Cir.1994); United States v. Clavis, 956 F.2d 1079, 1096 (11th Cir.1992)). In justifying this enhancement for the defendant in that case, the Matthews court relied upon the following evidence:
“Matthews does not dispute that the evidence at trial established that he fronted or directly sold cocaine to numerous ‘runners’ who would then sell the drug to buyers along Ebenezer road, giving Matthews the resulting profit.... In exchange for this service the runners would generally be entitled to a small amount of cocaine for their own personal use. This undisputed activity was sufficient to justify the sentencing court’s enhancement under § 3Bl.l(b).”
Id. at 1250.
In Trammell’s case, there is ample evidence in the record that he employed the services of runners on at least a few occasions. Although he refused to pay Lancaster a commission for the July 20,1993 sale, *1229Welch’s testimony that Trammell told him, “when I come out there [to purchase drugs], [I should] come by myself because Lancaster been wanting too much [cocaine as payment for his services as a runner],” indicates that Trammell had used Lancaster’s services as a runner in the past.49 Furthermore, Johnson testified at the re-sentencing hearing that “I would see one or two [runners] come to [Trammell] down by the house ... come down there and get some [crack] and run up back up the road with it.”50 Finally, Johnson also testified that Trammell was a dealer at the same level as himself, JaJa Davis, and Timothy Walker.51
The court finds this testimony credible. Although, as noted earlier, it is difficult to determine the precise scope of Trammell’s involvement in the conspiracy, it is readily apparent to the court that Trammell was at least a level-two dealer in the conspiracy who occasionally employed the services of runners. Pursuant to Matthews, the court thus concludes that Trammell is subject to the three-level enhancement for his supervisory or managerial role pursuant to U.S.S.G. § 3Bl.l(b).
D. Imposition of Consecutive or Concurrent Sentences
In its original resentencing brief, the government argued that, pursuant to U.S.S.G. § 5G1.2(d), the court should impose consecutive sentences on the various counts of conviction. However, this argument was based on the government’s own calculation of the drug quantity attributable to Trammell, which the court has now rejected. Thus, the government’s argument is moot.
i. The government’s argument
The government contended that Tram-mell should be held accountable for at least 1.5 kilograms of cocaine, resulting in a base offense level of 38, and an adjusted base offense level of 43.52 Combined with a criminal history category of III, the government concluded that Trammell’s guideline range was life imprisonment. However, it conceded that the statutory maximum as to Count I, a Class B felony, is 5 to 40 years pursuant to 21 U.S.C.A. § 841(b)(1)(B), and that the statutory maximum as to Count 24, a Class C felony, is not more than 20 years, pursuant to 21 U.S.C.A. § 841(b)(1)(C). Because Trammell’s guideline sentencing range as proposed by the government exceeded the statutory maximum on both counts, the government argued that § 5G1.2(d) mandated the imposition of consecutive sentences. Section 5G1.2(d) reads,
“If the sentence imposed on the count carrying the highest statutory maximum is less than the total punishment, then the sentence imposed on one or more of the other counts shall run consecutively, but only to the extent necessary to produce a combined sentence equal to the total punishment. In all other respects, sentences on all counts shall run concurrently, except to the extent otherwise required by law.”
ii. The court’s calculation
Trammell’s drug conspiracy and distribution offenses (Counts 1 and 24) are grouped together, pursuant to § 3D1.2(d) (“Group I”).53 In addition, his firearms *1230convictions (Counts 2-4) are also grouped together for the purpose of determining a base offense level (“Group II”).
The court has now determined that 9.256 grams of crack cocaine are attributable to Trammell for sentencing purposes. This results in a base offense level of 26, pursuant to § 2D1.1(c)(7). In addition, the court found above that Trammell is subject to a two-level firearm enhancement, pursuant to § 2Dl.l(b)(l), and a three-level enhancement for his supervisory or managerial role in the offense, pursuant to § 3Bl.l(b), for a total base offense level of 31 for Group I.
Trammell’s base offense level for Group II, as determined at his original sentencing, is 20, and remains undisturbed by this court.54 An application of the multiple count adjustment rules to Groups I and II of Trammell’s convictions results in a combined adjusted offense level of 31, pursuant to § 3D1.4. The guideline range for an offense level of 31 and a criminal history category of III is 135 to 168 months, or 11 years and three months to 14 years. Because this guideline range is less than the statutory maximum on both Counts 1 and 24, § 5G1.2(d) provides that the sentences on all counts shall run concurrently.
III. Conclusion
For the reasons above, the court concludes, for the purposes of calculating Trammell’s sentence under the Sentencing Guidelines, that:
(1) The amount of drugs attributable to Trammell for sentencing purposes is 9.256 grams of cocaine base;
(2) Trammell is subject to a two-level enhancement to his base offense level for firearm possession, pursuant to § 201.1(b)(1);
(3) Trammell is also subject to a three-level increase in his base offense level for his supervisory or managerial role, pursuant to § 3Bl.l(b); and
(4)Pursuant to § 5G1.2(d), the sentences on all counts shall run concurrently.
Finally, while the court has indicated that Trammell’s Sentencing Guidelines range is 135 to 168 months, the Guidelines are merely advisory pursuant to United States v. Booker, 543 U.S. -, 125 S.Ct. 738, 160 L.Ed.2d 621 (2005). Therefore, the parties should be prepared to address whether the court should impose a sentence greater than the Guidelines range because Trammell’s supervisory role in the conspiracy suggests that he is responsible for a quantity of drugs greater than 9.256 grams of crack cocaine.
It is therefore ORDERED that defendant James Lee Trammell, Jr. shall be resentenced in accordance with the findings set forth in this order.