ORDER
Appellant’s petition for rehearing is denied.
The suggestion for rehearing en banc was transmitted to all of the judges of the court who are in regular active service as required by Fed. R.App. P. 35. As no member of the panel and no judge in regular active service on the court requested that the court be polled, the suggestion is also denied.
Appellee’s motion to publish the order and judgment is granted. The order and judgment filed on July 10, 2002, shall be published. The published opinion is attached to this order.
OPINION
Defendant Paul Giovanni Graham (“Graham”) appeals from his conviction on three counts of “engag[ing] in the business of ... dealing in explosive materials without a licence,” in violation of 18 U.S.C. § 842(a)(1). We reverse in part and affirm in part.
FACTS
The evidence at trial, viewed in the light most favorable to the government, established the following facts:
In June 1999 Detective Kirk McIntosh (“Mack”) was involved in an undercover investigation of a militia-type organization (“Organization”). On or about June 19, 1999, Mack attended Organization training exercises held in Park County, Colorado. Graham participated in these exercises. Mack observed Graham explode devices similar to M280 firecrackers, which Graham referred to as “quarter stickers.” Tr. of Trial Proceedings at 32, R. Vol. 4. According to Mack, Graham made a comment to the effect “that he had a source for [the M280 devices] and he could get more of them.” Id. Based on this comment, Mack decided to approach Graham about whether he would sell him some of the devices.
On or about June 30,1999, Mack went to Front Range Surplus Store (“Store”), a business owned and operated by Graham. While at the Store, Mack asked Graham if “he was able to get any more of the quarter stickers that we had seen on the exercise in Park County.” Id. at 33. Graham indicated that he had nineteen of the devices left and that he would sell them to Mack for $7 a piece. Mack purchased ten of the devices, giving Graham $70 cash which Graham placed in his pocket.
During this transaction Mack inquired into whether or not the devices were waterproof and could be used for fishing pur *1098 poses. According to Mack, Graham responded that they were not, but indicated that “his manufacturer” could custom make the devices if necessary and that Graham himself was having “some custom ones made.” Id. at 37. Mack testified that although he did not make a specific request for any future devices, Graham “left it open that [Mack] could pretty much make any request and that his supplier would probably grant it.” Id. at 49.
Thereafter John Kronfeld, a cooperating witness for the FBI, was enlisted to assist with the investigation and conduct additional controlled buys from Graham. Kronfeld first approached Graham at a survival show on or about January 28, 2000. He introduced himself as Mack’s associate, and inquired into whether they could get more of the devices. Graham responded positively, indicating his willingness to deal with Kronfeld.
Kronfeld met with Graham at the Store on or about February 22, 2000, at which time the two agreed that Kronfeld would purchase fifty of the devices at a cost of $11.50 a piece. The sale was completed on February 25, 2000, when Kronfeld returned to the Store to pick up the devices. During this meeting Graham referred to the devices as “extension cords” and told Kronfeld to pick them up in the back of the Store because he did not want them going out of the Store itself. Kronfeld paid Graham $575 cash for the devices, which Graham again placed in his pocket. Kronfeld then proceeded out to the back of the Store where he found the devices in a box labeled “extension cords.”
The next transaction occurred on or about March 20, 2000. Graham agreed to sell Kronfeld fifty more devices for $11.50 a piece. The procedure was essentially the same. When Kronfeld arrived at the Store he paid Graham $575 cash which Graham again placed in his pocket. Graham again referred to the devices as “extension cords,” and Kronfeld again found the devices in a box out behind the back of the Store.
The final transaction occurred on or about May 30, 2000. As with the previous transactions, Kronfeld agreed to purchase fifty devices for $11.50 a piece. When Kronfeld arrived at the Store he paid Graham $575 cash which Graham again placed in his pocket. Graham then informed Kronfeld that he only had twenty-seven or twenty-eight of the devices on hand, but that the manufacturer was making more to be picked up in a few days. Kronfeld left with the twenty-seven or twenty-eight devices which Graham again referred to as “extension cords,” and which Kronfeld again found in a box behind the Store.
After this final transaction, Kronfeld discussed with Graham, via e-mail and telephone, the possibility of ordering 1000 more devices in five increments of 200. During these conversations Graham indicated his continued willingness to engage in future transactions, but told Kronfeld that the price might be higher because he had a new manufacturer. 1
On or about June 14, 2000, federal officers executed a search warrant at the Store. During the search, officers found approximately twenty-five devices which were apparently intended to fulfill the bal- *1099 anee owed Kronfeld on the May 2000 transaction.
It is undisputed that Graham obtained all of the devices he sold to Mack and Kronfeld from the same manufacturer, and that he paid the manufacturer approximately $6.50 a piece for the devices. It is also undisputed that Graham made approximately $755 on the four transactions (approximately $5 on the initial transaction with Mack and approximately $250 on each of the transactions with Kronfeld). The profits were apparently donated to the Organization. 2
PROCEDURAL BACKGROUND
Graham was indicted on four counts, each alleging that he “knowingly and unlawfully engaged in the business of ... dealing in explosive materials ... in violation of Title 18, United States Code, Section 842(a)(1).” Indictment at 1-2, R. Vol. 1, Doc. 1. Each count was based entirely on one of the four separate transactions described above.
Prior to trial, Graham unsuccessfully moved to dismiss the indictment, asserting that section 842(a)(1) violated his constitutional rights under the Second, Fifth, Ninth and Tenth Amendments. At trial, Graham unsuccessfully moved for a judgment of acquittal pursuant to Fed. R.Crim.P. 29(a), asserting that the government failed to present evidence sufficient to prove its case beyond a -reasonable doubt. 3 Graham’s motion in this regard was based entirely on his assertion that the term “engage! ] in the business” in section 842(a)(1) requires proof that the defendant engaged in the sale of explosives as his primary business, or for profit as a means of sustaining his livelihood.
At the conclusion of the trial, the jury found Graham guilty with respect to the three counts involving the transactions with Kronfeld, but found him not guilty with respect to the one count involving the initial transaction with Mack. Graham thereafter filed a post-trial motion for a judgment of acquittal, reasserting his argument that the evidence presented at trial was insufficient to sustain the conviction, and arguing for the first time that the three separate convictions were multiplici-tous because “the government charged each isolated transaction as a separate offense.” Def.’s Post-Trial Mot. for J. of Acquittal at 7, R. Vol. I, Doc. 97. The district court denied the motion, without any discussion of Graham’s multiplicity claims. The district court thereafter sentenced Graham to three concurrent eight-month terms of imprisonment, followed by three concurrent three-year terms of supervised release, and ordered Graham to pay three separate $100 special assessments.
*1100 DISCUSSION
On appeal, Graham contends that there was insufficient evidence to sustain his convictions, and that section 842(a)(1) is unconstitutional because it is void for vagueness and violates his rights under the Second, Fifth, Ninth and Tenth Amendments. We address each of his contentions in turn.
I. Sufficiency of the Evidence
Graham’s sufficiency of the. evidence argument actually consists of two separate contentions. First, he asserts that the government improperly charged him with a separate count for each of the four separate transactions, rendering his convictions multiplicitous. Second, he asserts that a conviction under section 842(a)(1) requires proof that the defendant sold explosives as a primary business or for the sole purpose of making a profit to sustain his livelihood, and that the evidence presented at trial does not establish this required element. For the reasons discussed below, we agree that the convictions were multiplicitous and that Graham can be convicted on only one count but reject his argument that the evidence was insufficient to support a conviction on that single count.
A. Multiplicity
“Multiplicitous counts — those which are based on the same criminal behavior — are improper because they allow multiple punishments for a single criminal offense.”
United States v. McIntosh,
Graham contends that the government erred in “charging] each isolated transaction as a separate offense,” Appellant’s Br. at 19, because each transaction standing alone “could not constitute the pattern of repeated commercial activity necessary to show he engaged in the business” of dealing explosives. Id. at 10-11. The government essentially concedes this point, admitting that the statute at issue punishes continuing conduct rather than separate offenses, see Appellee’s Br. at 16 (conceding that the “ ‘gist of the offense is carrying on the business ... and not the sale ... itself ”) (quoting Bush v. United States, 218 F.2d 223-24 (10th Cir.1954)), and that the Supreme Court therefore allows only one punishment:
“The test is whether the individual acts are prohibited, or the course of [conduct] which they constitute. If the former, then each act is punishable separately. If the latter, there can be but one penalty.”
Id.
at 15 (quoting
Blockburger v. United States,
We have no problem concluding, particularly in light of the government’s concession, that the multiple charges and convictions in this case were plainly erroneous, and that on the facts of this case it would affect Graham’s rights and substantially undermine the integrity of the judicial proceedings if we allowed him to receive three punishments for the same offense. Accordingly, we remand with instructions that the district court vacate two of Graham’s counts of conviction, along with their concurrent sentences.
See McIntosh,
B. Insufficient Evidence
We now consider whether the evidence was sufficient to sustain Graham’s remaining count of conviction. “The sufficiency of the evidence to support a criminal conviction is a question of law to be reviewed de novo.”
United States v. Higgins,
We consider the sufficiency of the evidence in the light most favorable to the jury’s verdict, and determine whether any rational trier of fact could have found, from the direct and circumstantial evidence presented to it, together with the reasonable inferences therefrom, the essential elements of the crime beyond a reasonable doubt.
McIntosh,
As discussed above, Graham admits that he sold explosive devices to Mack or Kron-feld on four different occasions, that he made money on these transactions, and that he did not have a license for such sales. His argument on appeal is simply that these facts do not prove that he was “engage[d] in the business” of dealing in explosives. Specifically, he contends that his actions in selling explosive devices to “friends” on four occasions, at their request, for a slight profit, did not establish that he was actually “engage[d] in the business” of selling explosives under the^ statute. We disagree.
Graham urges us to apply the definition of the term “engage[d] in the business” contained in an analogous statute prohibiting the distribution of firearms without a license:
The term engaged in the business is not defined in th[e] statute dealing with explosive materials, in Chapter 40.
The term engaged in the business is defined in Chapter 44, which parallels the explosives statute ... in many respects, and which deals with firearms. There, engaged in the business is defined to mean, as applied to a dealer in firearms, “a person who devotes time, attention and labor to [engaging in such activity] as a regular course of trade or business with the principle objective of livelihood and profit through the repetitive purchase and resale of firearms, but such term shall not include a person who makes occasional sales, exchanges, or purchases of firearms for the enhancement of a personal collection or for a hobby, or who sells all or part of his personal collection of firearms.”
Appellant’s Br. at 14 (quoting 18 U.S.C. § 921(a)(21)(C)). Graham asserts that the district court erred in denying Graham’s request to instruct the jury on this definition. We disagree.
The definition advocated by Graham was added to the firearms statute by Congress in 1986, to resolve a circuit split regarding the meaning of the term as it applies in the firearms statute.
4
While Congress had the
*1102
power to simultaneously amend the explosives statute to contain the exact same definition (and may decide to do so in the future), it did not. Graham cites no case law applying this definition from the firearms statute in the context of the explosives statute, and we have indeed found no case law even interpreting the scope of the term “engage[d] in the business” as it applies in the explosives statute. Accordingly, we reject Graham’s invitation to unilaterally amend the explosives statute by applying the definition of “engage[d] in the business” now found in the amended firearms statute.
See Christner v. Poudre Valley Co-op. Ass’n,
As correctly noted by the district court, “[w]hen a word is not defined by statute, we normally construe it in accord with its ordinary or natural meaning.”
Smith v. United States, 508 U.S.
223, 228,
The term “engage” is commonly defined as “to occupy or involve oneself; take part; be active.” Webster’s New World College Dictionary (“Webster’s”) at 450 (3rd ed.1997). Webster’s defines “business” as “the buying and selling of commodities and services; commerce; trade.” Webster’s at 189. Applying these definitions, a person would be “engagefd] in the business” of dealing in explosives under section 842(a)(1) if he “take[sj part” in, “occupies] or involve[s him]self,” or is otherwise “active” in the “buying and selling” or “tradfing]” of explosives in “commerce.” Stated another way, one is guilty of “engaging] in the business” of dealing in explosives under the statute if one has explosives “on hand or is ready and able to procure them for the purpose of selling them from time to time to such persons as might be accepted as customers.”
United States v. Carter,
Graham responds that this definition is too broad, and that even if we refuse to adopt the exact definition now contained in the firearm statute, we should still define the term to require some showing that the defendant sold explosives as his primary occupation with the primary intent of making a profit to support his
*1103
personal livelihood. Appellant’s Br. at 16. Although his position has some support in alternative dictionary definitions of the term “business,”
see
Webster’s at 189 (defining “business” as “one’s work, occupation or profession”),
5
and in analogous case law interpreting the firearm statute prior to its 1986 amendment,
see, e.g., Gross,
We conclude that the intent to profit is not a required element of the offense,
cf. Swinton,
[The explosives statute] ... establishes Federal controls over the interstate ... commerce of explosives and is designed to assist the States to more effectively regulate the sale, transfer and other disposition of explosives within their borders. The [statute] establishes a system of Federal licenses and permits; licenses are required of all explosive manufacturers, importers and dealers; and permits are required of all users who depend on interstate commerce to obtain explosives.... [T]he purpose of this [statute] is to protect interstate and foreign commerce by reducing the hazards to persons and property associated with the misuse of explosives without placing unnecessary restrictions on the lawful use of explosives.
Organized Crime Control Act of 1970,
H. Rep. 91-1549 (1970),
reprinted in
1970 U.S.C.C.A.N. 4007, 4011, 4040 (emphasis added). Our conclusion in this regard is buttressed by the majority of analogous case law applying the firearm statute, both before and after the 1986 amendment, concluding that a defendant need not be shown to have acted with profit-making intent or engaged in the sale of firearms as his primary business in order to be convicted under the statute.
See United States v. Murphy,
Applying our definition in this case, the evidence was clearly sufficient to sustain Graham’s conviction. As noted previously, the evidence discloses that Graham voluntarily and without hesitation sold explosive devices to both Mack and Kron-feld on four separate occasions, 8 that he had the explosives on hand or could readily procure them as they were needed by his selected customers, and that he expressed a general willingness to participate in even larger transactions in the future. The evidence further supports the conclusion that Graham’s participation in these sales was more than just a hobby, and that he sold the devices for more than it cost to procure them and complete the transaction, thereby making a profit. 9 Finally, the fact that Graham sold to Mack and Kronfeld shortly after he met them reasonably supports the conclusion that he was ready and willing to sell to anyone.
Contrary to Graham’s assertions on appeal, the fact that the transactions were solicited by the undercover agents, rather than Graham himself, is inapposite.
Cf. Carter,
In sum, we hold that the evidence in this case was sufficient to allow a reasonable jury to find Graham guilty beyond a reasonable doubt on one count of “engaging] in the business of dealing in explosive[s]” under 18 U.S.C. § 842(a)(1).
II. Constitutionality
Graham also asserts that section 842(a)(1) is unconstitutional. In this regard, he first contends that the statute is unconstitutionally vague and ambiguous regarding the undefined use of the term “engage[d] in the business.” Appellant’s Br. at 11. Second, he contends that the statute “conflicts with rights protected by the Second, Fifth, Ninth and Tenth Amendments to the United States Constitution.” Appellant’s Br. at 23. “We review constitutional challenges to statutes de novo.”
United States v. Haney,
A. Void for Vagueness
“The void-for-vagueness doctrine requires that a penal statute define the criminal offense with sufficient definiteness that ordinary people can understand what conduct is prohibited and in a manner that does not encourage arbitrary and discriminatory enforcement.”
United States v. Gaudreau,
We have already concluded the undefined term “engage[d] in the business” should be given its “plain and ordinary” meaning, and we conclude further that there was no need for Congress to specifically define the term. We determined above that the statute generally prohibits a defendant from engaging in a course of conduct through which he actively and continually sells regulated explosives without a license. Contrary to Graham’s suggestions on appeal, the fact that there may be variations in the ordinary meaning to the term “business” does not render the term vague for constitutional purposes.
See United States v. Davis,
Graham responds by reasserting his multiplicity claim. Specifically, he contends that the very fact the jury was allowed to convict him of four separate offenses, rather than on one offense for a continuous course of conduct, demonstrates the statute is “incoherent” and leads to arbitrary enforcement. We have already concluded that the statute clearly requires a course of conduct and that it *1106 was plain error to charge and convict the defendant on multiple counts. This error, however, stemmed entirely from the erroneous application of the clear statute, and not from vagueness or ambiguity inherent in the statute itself. Accordingly, we reject Graham’s contention that the statute is unconstitutionally void for vagueness.
B. Individual Constitutional Rights
Turning to Graham’s final arguments on appeal, we reject his contention that section 842(a)(1) violates his constitutional rights guaranteed by the Second, Fifth, Ninth and Tenth Amendments.
With respect to his Second Amendment claim, Graham asserts that by banning the sale of the explosive devices, section 842(a)(1) unconstitutionally infringes upon his right to “keep and bear arms.” U.S. Const, amend. II. Specifically, Graham asserts that the explosive devices at issue “have a common use in military training exercises,” Appellant’s Br. at 25-26, that there is an “individual right to participate in militia training exercises, and to keep and bear arms needed by a militiaman,” id. at 26, and that “[t]hese rights would mean little if he could not purchase or sell these arms.” Id.
We have previously held that a federal weapons restriction “does not violate the Second Amendment unless it impairs the state’s ability to maintain a well-regulated militia,”
Haney,
At the very least, Graham failed to prove that he was part of a state militia, or that his participation in the Organization was “well-regulated” by the state. The only evidence presented at trial established that while he was a member of the private Organization, the group had never been recognized, condoned or otherwise regulated by the state. The evidence further disclosed that the Governor of Colorado specifically denied Graham’s request to “be commissioned as an officer in the Colorado state militia.” Tr. of Trial Proceedings at 348, R. Vol. 5.
In any event, Second Amendment i-ights are subject to reasonable governmental restrictions.
See United States v. Emerson,
Finally, we decline to consider Graham’s remaining constitutional contentions, i.e., that the statute violates his Fifth, Ninth and Tenth Amendment rights. He failed to provide any actual argument or legal authority in support of these contentions on appeal, and we will not craft his arguments for him.
See Perry v. Woodward,
CONCLUSION
Based on the foregoing, we REMAND with instructions for the district court to vacate two of Graham’s three convictions under 18 U.S.C. § 842(a)(1), and AFFIRM the remaining count of conviction.
Notes
. Graham contended at trial that he lied about the new manufacturer because he was scared of Kronfeld and wanted to find a way out of participating in further transactions. The jury was apparently unpersuaded by this testimony.
See generally United States v. Ed-monson,
. There was a dispute at trial about how Graham came to profit on the transactions in the first place, and what he actually did with the money. Graham contended that he took a profit only at the insistence of Kronfeld and that the profit was always intended as a donation to the Organization. He further testified that, pursuant to Kronfeld's orders, all of the money was used to further Organization activities. Kronfeld admitted that the topic of a donation to the Organization was discussed, but denied insisting on such. According to Special Agent Mark Holstlaw, Graham confessed during the search of the Store that although a portion of the money went to the Organization, a portion also “went to his business” and "to the Young Marine program.” Tr. of Trial Proceedings at 127, R. Vol. 4. We find this factual dispute irrelevant to our analysis. See infra note 9.
. This motion was initially raised and denied at the conclusion of the government's case-in-chief, and was also renewed without success at the end of the presentation of the evidence, before the jury deliberated.
.
See United States v. Swinton,
. See also Black’s Law Dictionary at 198 (6th ed.1990) (defining business as "[e]mployment, occupation, profession, or commercial activity engaged in for gain or livelihood”).
.
See also Day,
."It is our primary task in interpreting statutes to determine congressional intent, using traditional tools of statutory construction.”
St. Charles Invest. Co. v. Commissioner,
. The Government asserted at oral argument, and Graham essentially conceded, that even if the Indictment originally contained only one charge under section 842(a)(1), it would have included all four of the transactions in question, and that the facts surrounding all four of the transactions would have certainly been admitted into evidence to prove a continuous course of conduct. Thus, despite our holding that Graham can be convicted on only one count in this case, we appropriately consider all of the evidence submitted at trial regarding all four of the relevant transactions, in determining whether the evidence was sufficient to sustain that sole count.
. Although we find the fact of a profit persuasive to our overall analysis, it is not, as noted above, a required element. We further note that it is irrelevant to our analysis whether the profit was kept for Graham's personal benefit or donated to the Organization. Even if we assume that Graham donated the money to the Organization, and even if we assume that this was done at Kronfeld’s insistence, we believe that a jury could still reasonably conclude that Graham readily agreed to sell the devices in order to further his strong personal interests in maintaining the Organization, and that he was therefore actively and purposefully engaging in the business of selling explosives.
