Cite as U.S. v. Hommer, No. 96-1681, (8th Cir. 1996) ___________ No. 96-1681 ___________ United States of America, * * Appellee, * Appeal from the United States * District Court for the v. * District of Minnesota. * Stephen Matthew Hommer, * [UNPUBLISHED] also known as Steven * Matthew Hommer, * * Appellant. * ___________ Submitted: October 22, 1996 Filed: November 13, 1996 ___________ Before WOLLMAN, BRIGHT, and MAGILL, Circuit Judges. ___________ PER CURIAM. Stephen Hommer appeals his conviction of possessing and transferring a machine gun in violation of 18 U.S.C. sections 922(o) and 924(a)(2). Hommer contends that the Government failed to present sufficient evidence to support the conviction. Hommer argues that the Government offered no direct evidence that he test fired the semi-automatic pistol after grinding down its hammer to make it fire automatically. He contends this lack of direct evidence bars his conviction. Hommer also contends that evidence of his earlier assembly of a Sten machine gun constituted improper evidence of bad acts, not permitted by Rule 404(b) of the Federal Rules of Evidence. We reject Hommer's contentions and affirm. The Government presented ample circumstantial evidence to the jury establishing that by grinding down the hammer of a M-11, 9mm pistol, Hommer knew the weapon would fire automatically. Further, the evidence that Hommer constructed Sten machine guns from kits some years ago indicated the extent of his knowledge about automatic firing of guns and his awareness that grinding down the hammer of his pistol would cause it to fire automatically. Thus, the district court properly admitted the evidence under Rule 404(b) of the Federal Rules of Evidence. We affirm without an extended opinion. See 8th Cir. R. 47B. A true copy. Attest: CLERK, U. S. COURT OF APPEALS, EIGHTH CIRCUIT.