OPINION
Michael Rodney Ham appeals his conviction for possession of cocaine base (“crack”) with intent to distribute, possession of a firearm in furtherance of a drug trafficking offense, and being -a felon in possession of a firearm. Ham objected to few if any of his issues at trial, but now challenges the admission of certain evidence, the sufficiency of the evidence, the district court’s jury instructions, certain statements by the Government in opening statement and closing argument, and his consecutive sentence under 18 U.S.C. § 924(c). We AFFIRM.
I. BACKGROUND
The Knox County Sheriffs Office utilized a confidential informant to conduct a series of “controlled buys” of crack cocaine from a seller known as “Ace” at 1537 Virginia Avenue in Knoxville, Tennessee. Based on these purchases, the Sheriffs Office obtained a search warrant to seize drugs from the premises.
On September 18, 2007, officers executed the search warrant. The officers knocked and announced their presence; however, no one answered the door. The officers therefore used a ram to forcibly enter the house. Upon entry, the officers *804 encountered Jabari Sheffield, also known as “Jam,” and two small children in the living area. In securing the house, officers located a bedroom door that they were unable to open easily.
The officers forcibly opened the door and found Ham hiding in the bedroom closet. At Ham’s feet, on the closet floor, officers recovered 37.4 grams of crack cocaine. Also in the closet was a black case containing ammunition and an unloaded .380-caliber pistol, which had been reported stolen from an individual in Knox County in 2006. On top of an armoire near the closet, approximately head-high, officers located a loaded 9 mm handgun. The officers found and seized $1,008 in cash from Ham’s pockets, the bed, the armoire, and a shoebox in the closet. The officers also seized a box of various ammunition, plastic baggies, and a set of digital scales from the bedroom, as well as three cellular telephones from the house. A plate with a razor blade and white residue on it was located in the bathroom.
Ham was arrested and transported to a detention facility. Upon booking, Ham’s tattoos — an “Ace of Spades” and a dagger — were photographed. Ham was charged with possession with intent to distribute five grams or more of crack, possession of a firearm in furtherance of a drug trafficking crime, and being a felon in possession of a firearm.
A jury convicted Ham of all counts on October 16, 2008. The district court sentenced Ham to an effective term of imprisonment of 190 months, followed by eight years of supervised release. Ham now appeals.
II. ANALYSIS
A. Evidentiary Issues
1. Standard of Review
Generally, “[w]e review the district court’s admission or exclusion of evidence for an abuse of discretion.”
United States v. Davis,
2. Agent Dave Lewis
a. Relevance and Probative Value
Agent Dave Lewis, a special agent with the Drug Enforcement Administration (“DEA”) for approximately twenty-two years, testified regarding the characteristics of crack cocaine as well as the methods involved in the distribution of the drug. Defendant argues that the district court abused its discretion because it failed to assess the relevance and probative value of Agent Lewis’s testimony before he was permitted to testify. Defendant did not raise this specific objection during trial; therefore, we review the district court’s decision for plain error.
We have previously rejected an identical challenge in
United States v. Alford,
b. Personal Use Quantities
Defendant argues that the district court clearly erred by allowing Agent Lewis to testify beyond his area of expertise. Specifically, Defendant contends that Agent Lewis’s background and training does not qualify him to testify to the quantities of crack that are consistent with personal use. This argument is without merit. As we stated in
Alford,
“[t]his Court routinely allows qualified law enforcement officials to testify that circumstances are consistent with drug distribution rather than personal use.”
Alford,
332 FedAppx. at 282 (citing
United States v. Swafford,
c. Cellular Telephones
Defendant also argues that Agent Lewis’s testimony concerning “throw-away” cellular telephones was beyond the scope of his expertise, irrelevant, and unduly prejudicial. Agent Lewis testified, without objection, that drug traffickers often use throw-away phones because they can be set up with a fictitious name, making them untraceable. Defendant argues that this testimony was improper because there was no evidence in the record that Defendant used any of the three phones in the manner described by Agent Lewis.
The testimony was within the scope of Agent Lewis’s expertise because it concerned a “method of operation of drug dealers.” Id. at 281. Agent Lewis’s testimony explaining why the items seized from the house were consistent with drug dealing was relevant to the issue of whether Defendant intended to distribute the drugs found with him in the bedroom closet. See Thomas, Ik F.3d at 682 (“[W]ithout expert testimony, the average juror is unlikely to understand the significance of drug paraphernalia....”). The fact that there was no direct evidence that Defendant used the cell phones in the way that Agent Lewis testified is of no consequence. Agent Lewis was not offered to provide percipient testimony directly demonstrating Defendant’s actions. Instead, he was providing an opinion, based on extensive training and experience, about the items recovered from the residence and the reasons that they were consistent with drug trafficking. Defendant was free to cross-examine Agent Lewis to demonstrate that there were other legitimate uses for these items. In addition, the jury was instructed that they did not have to accept the opinion testimony and that they should consider how the witness reached his conclusion. Accordingly, we find nothing prejudicial in Agent Lewis’s testimony concerning throw-away cellular telephones and conclude there was no error in its admission.
3. Investigator Chris Bryant
Chris Bryant, an investigator with the narcotics unit of the Knox County Sheriffs Office, testified predominantly regarding the “controlled buys” and the execution of the search warrant. He also explained to the jury that items such as scales and plastic sandwich bags are used in the drug trade just as they are in the average household: to weigh and to package things. Defendant argues that the district court erred by allowing Bryant’s *806 “transformation from a fact witness to an opinion witness.” (Appellant’s Br. 12.) Defendant did not object to Bryant’s passing comments about these few items of evidence at trial. We review for plain error.
Although testimony concerning drug dealing is specialized knowledge “not within the experience of the average juror,”
United States v. Lopez-Medina,
The admission of this “expert testimony” presents two issues; neither warrants reversal. First, in its Rule 16 disclosure, the Government did not provide Defendant with notice that Bryant would comment about plastic baggies and scales. Nonetheless, Defendant was in no way prejudiced by this absence. The Government’s Rule 16 disclosure notified Defendant that expert testimony concerning the general practices of drug dealers would be introduced at trial. Defendant thus “did not suffer any surprise,” a point underscored by his attorney’s silence as Bryant’s brief testimony on these points was heard.
United States v. White,
Second, when a witness gives both fact and expert testimony, the district court must give “a ‘cautionary jury instruction regarding the [witness’s] dual witness roles’ ” or there must be “ ‘a clear demarcation between [the witness’s] fact testimony and expert opinion testimony.’ ”
United States v. Smith,
4. Jabari Sheffield’s Crack Cocaine Complaint and Judgment
Defendant alleges that the district court erred by refusing to admit into evidence a *807 complaint against Jabari Sheffield for possession of 9.6 grams of crack cocaine for resale and a judgment showing her subsequent guilty plea to simple possession of cocaine. The complaint states that officers recovered the crack cocaine from Sheffield on Bonnyman near Oldham, on June 2, 2007. The district court sustained the Government’s objection, concluding that the exhibit could not be introduced for impeachment purposes under Federal Rule of Evidence 609 because Sheffield was not testifying and that the exhibit was not relevant to whether Defendant was guilty of the crimes charged. Defendant argues that this was error because the trial court should have analyzed 'the admissibility under Federal Rule of Evidence 803(8)(C) and 804(b)(3).
Defendant’s argument misses the mark. The evidence was not excluded because it was hearsay, and it does not matter whether an exception to the hearsay rule might apply.
Nor do we find that the district court abused its discretion in sustaining the Government’s objection to evidence that was not relevant. The evidence suggesting that Sheffield was dealing drugs at another location does not bear on any fact of consequence in this case. Sheffield’s potential involvement in drug trafficking activities — others or those implicated in this case — does not make the question of Defendant’s guilt more or less likely. Indeed, the Government was not required to prove that it was Defendant, to the exclusion of all others, who possessed the drugs and firearms in this case. Even if Sheffield jointly possessed the guns and drugs at 1537 Virginia Avenue, Defendant could still be found guilty.
United States v. Gibbs,
5. Stolen Firearm
Special Agent Rebecca Bobich testified that the .380-caliber pistol recovered from the bedroom closet was reported stolen in Knox County on October 21, 2006. Defendant argues that this evidence was not relevant to any of the offenses charged in this case. Defendant is mistaken. The legality of the possession of a firearm is a factor to consider in determining whether the firearm was possessed in furtherance of a drug trafficking offense.
United States v. Mackey,
B. Sufficiency of the Evidence
This Court reviews
de novo
a defendant’s claim of insufficiency of the evidence.
United States v. Gunter,
1. Possession of Cocaine Base with Intent to Distribute
“To establish a violation of § 841(a)(1), the government must prove
*808
the following elements: ‘(1) knowing (2) possession of a controlled substance (3) with intent to distribute.’ ”
Mackey,
Defendant argues that, aside from Agent Lewis’s testimony that the crack was packaged for distribution and was “way too much for personal use” and Investigator Bryant’s testimony regarding the scales and baggies, there was insufficient evidence that Defendant possessed the crack with intent to distribute. Contrary to Defendant’s argument,
“all of the evidence
is to be considered” when reviewing for sufficiency of the evidence.
Jackson,
Additional evidence also supported the conviction. Investigator Bryant testified that the confidential informant made a series of controlled buys from a person he referred to as “Ace” at 1537 Virginia Avenue. Defendant sports an “Ace of Spades” tattoo, and was within a locked bedroom at that Virginia Avenue address. Defendant’s plan to avoid apprehension was to hide in the closet with more than 37 grams of crack cocaine at his feet. Any reasonable jury could have concluded that Defendant was the same “Ace” who was selling drugs to the confidential informant. We wonder what jury would
not
reach that conclusion. Moreover, the jury could have inferred solely from the possession of this large quantity of drugs that Defendant intended to further distribute it.
United States v. Haywood,
2. Possession of a Firearm in Furtherance of a Drug Trafficking Offense
Under 18 U.S.C. § 924(c), any person “who, in furtherance of [a drug trafficking] crime, possesses a firearm, shall, in addition to the punishment provided for [the] drug trafficking crime — (i) be sentenced to a term of imprisonment of not less than 5 years.” 18 U.S.C. § 924(c)(l)(A)(i). To prove the possession was “in furtherance of’ the drug trafficking crime, the Government must show a “specific nexus between the gun and the crime charged” and that the firearm “was strategically located so that it is quickly and easily available for use.”
Mackey,
We applied the
Mackey
factors in
Swafford
and concluded that each of the factors supported the conclusion that the defendant possessed the firearm “in furtherance of’ the drug offenses.
Swafford,
Application of the factors from
Mackey
leads us to the same conclusion. The loaded 9 mm pistol in this case was located about head-high on top of an armoire situated just outside the closet where the drugs were found. It was “strategically located so that it [was] quickly and easily available for use.”
Mackey,
C. District Court’s Instructions
1. Failure to Give a Cautionary Instruction
Defendant argues that the district court’s failure to give a cautionary instruction following Agent Lewis’s testimony was plain error. This Court addressed a similar challenge to a district court’s failure to give a cautionary instruction following Agent Lewis’s testimony in
Alford.
The district court here gave a cautionary jury instruction regarding opinion testimony that was very similar to the charge given in
Swafford.
2. Burden of Proof
Defendant takes issue with the district court’s instruction to the jury during voire dire that “the burden of proof is on the government until the very end of this case.” R. 41 at 13. Defendant acknowledges that the district court gave an accu *810 rate instruction after the close of evidence, and that he did not object to the court’s language during voir dire, but argues that the instruction constituted plain error because it implied the burden might shift to Defendant.
“This court reviews jury instructions
as a whole
to determine whether they fairly and adequately inform the jury of relevant considerations and explain the applicable law to assist the jury in reaching its decision.”
United States v. Prince,
The challenged instruction does not suggest a burden shift, and is not improper as stated. We believe that a jury would think of “the very end of this case” as that time when they have rendered a verdict and their service has ended.
In addition, even if the instruction were seen, standing alone, as implying a burden shift, the court extensively instructed the jury that it was always the Government’s burden to prove Defendant guilty beyond a reasonable doubt. There is no risk of confusion or misconception to be found here.
D. Prosecutorial Misconduct
“When we review claims of prosecutorial misconduct, we determine whether the prosecutor’s statements were both improper and flagrant.”
United States v. Davis,
1. Opening Statements
Defendant argues — briefly—that he was prejudiced by the Government stating during its opening statement that “on the armoire was some marijuana and some pills.” Defendant stated no objection then, but argues now that the statement was irrelevant to the charges against him and no evidence concerning marijuana and pills was introduced at trial.
“Prosecutors should put forth only ‘proper arguments based on the evidence in the record.’ ”
Davis,
The prosecutor’s opening statement, to the extent that it referred briefly to “marijuana and pills” purportedly found during the search was not later supported by testimony. But we find no basis to conclude that the statement was flagrant, even though it was, by one measure or another, a mistake. It was an isolated remark and, given that the specifics of the search warrant execution would be a focus of the trial, there is no indication that it
*811
was a deliberate attempt to inject inflammatory or damning “evidence” that was never to be introduced. Moreover, the district court instructed the jury twice that the statements and arguments of attorneys are not evidence. R. 41 at 68; R. 42 at 123. The prosecutor’s fleeting reference to “pills” and “marijuana” was, in this case, of no more import than a few stray raindrops in a shower. It was in no way “so pronounced and persistent that it permeatefd] the entire atmosphere of the trial.”
Bond,
2. Closing Arguments
Defendant argues that the Government improperly referred to the names of his prior convictions — possession of cocaine with intent to sell and possession of a handgun by a felon — during its closing argument. 1 The Government referred to the names a total of four times — twice during its initial closing argument and twice during its rebuttal.
Three of the instances are clearly in reference to the proper argument that Defendant is a convicted felon, an element of the crime of being a felon in possession of a firearm. Defendant cites no authority precluding the Government from referring to properly admitted evidence that is essential to the Government’s case-in-chief during closing arguments. Although statements that are permissible in isolation may, in aggregate, demonstrate an improper purpose, we find no evidence of an improper purpose in this case.
Nonetheless, the fourth instance, in which the Government appeals to the jury’s “common sense,” comes close to the line. Based on the context, it is unclear whether the Government was suggesting that the jury consider the prior convictions as propensity evidence, evidence of an intent to distribute, or evidence that Defendant was a convicted felon. The reference is sufficiently ambiguous that it is unlikely the jury would view this as an invitation to consider the evidence for an improper purpose. Moreover, the district court gave a limiting instruction explicitly informing the jury that they may consider the prior convictions only as evidence relating to the element of Defendant having been previously convicted of a felony. The general rule is that a jury is presumed to follow the district court’s instructions,
see United States v. Moreno,
E. Sentencing
We also consider whether the consecutive component of Defendant’s 190-month sentence was proper. Defendant was sen-
*812
fenced to 130 months for possession with intent to distribute cocaine base, 120 months for being a felon in possession of a firearm (to run concurrently with the 130 months), and 60 months for possessing a firearm in furtherance of a drug trafficking offense. The 60-month consecutive sentence was imposed under 18 U.S.C. § 924(c) as the mandatory minimum sentence for possessing a firearm in furtherance of a drug trafficking offense. Defendant challenges the imposition of this sentence under § 924(c), arguing that it is inconsistent with our decision in
United States v. Almany,
As in this case, the sentence in
Almany
included a ten year mandatory sentence for drug trafficking offenses and a five year mandatory sentence for possession of a firearm in furtherance of a drug trafficking crime under 18 U.S.C. § 924(c)(1)(A).
Except to the extent that a greater minimum sentence is otherwise provided by this subsection or by any other provision of law, any person who, ... in furtherance of any such crime, possesses a firearm, shall, in addition the punishment provided for such crime of violence or drug trafficking crime — (i) be sentenced to a term of imprisonment of not less than 5 years; (ii) if the firearm is brandished, be sentenced to a term of imprisonment of not less than 7 years; and (iii) if the firearm is discharged, be sentenced to a term of imprisonment of not less than 10 years.
18 U.S.C. § 924(c)(1)(A) (emphasis added). Upon indistinguishable facts, the
Almany
panel held that the plain language of the statute proscribes application of the five year mandatory minimum sentence together with a longer mandatory minimum sentence.
The Supreme Court’s opinion in
Abbott,
however, held that the language in § 924(c) refers only to other provisions imposing longer mandatory sentences “for the conduct § 924(c) proscribes,
i.e.,
possessing a firearm in connection with a predicate crime.” — U.S. -,
After deciding
Abbott,
the Supreme Court granted certiorari and vacated
Al-many.
— U.S.-,
III. CONCLUSION
Defendant’s five-year mandatory sentence under § 924(c) was proper even in view of his ten-year mandatory sentence under § 841. The judgment of conviction of the district court is AFFIRMED.
Notes
. During oral argument, Defendant clarified that his argument concerning his prior convictions was based on a theory of prosecutorial misconduct. In his brief, Defendant argues that the probative value of the evidence of his prior convictions is substantially outweighed by its prejudicial effect. This argument also fails. The Government was obligated to prove beyond a reasonable doubt that Defendant had a previous felony conviction.
See United States v. Jones,
