OPINION

Gary A. Robinson was convicted of being a felon in possession of a firearm. On appeal, he raises three issues. For the reasons that follow, we affirm. First, Robinson alleges that the district court erred by failing to grant his motion for a new trial on the grounds of newly discovered evidence. We do not find that the district court abused its discretion, United States v. Singh, 54 F.3d 1182, 1190 (4th Cir. 1995) (stating review standard), because the evidence at issue was merely cumulative. United States v. Chavis, 880 F.2d 788, 793 (4th Cir. 1989) (listing elements required to establish grounds for new trial, including that the evidence must not be merely cumulative or impeaching).

Second, Robinson alleges that the district court improperly gave him a two-level enhancement under U.S. Sentencing Guidelines Manual § 2K2.1(b)(4) (2000), because the firearm at issue had a serial number. It is undisputed, however, that the firearm at issue did, in fact, have an obliterated serial number. That the firearm also had a hidden serial number, that was not obliterated, is without moment.

Finally, Robinson argues that under United States v. Lopez, 514 U.S. 549, 115 S.Ct. 1624, 131 L.Ed.2d 626 (1995), the interstate commerce element of 18 U.S.C. § 922(g) (2000) exceeds Congress’ Commerce Clause authority, and thus, his conviction should be overturned. This court has rejected this argument. United States v. Gallimore, 247 F.3d 134, 138 (4th Cir. 2001); United States v. Nathan, 202 F.3d 230, 234 (4th Cir.), cert. denied, 529 U.S. 1123, 120 S.Ct. 1994, 146 L.Ed.2d 819 (2000).

Accordingly, because Robinson’s claims are without merit, we affirm Robinson’s conviction and sentence. We dispense *645 with oral argument because the facts and legal contentions are adequately presented in the materials before the court and argument would not aid the decisional process.

AFFIRMED.