OPINION OF THE COURT

Appellant Harold Cannon was convicted by a jury of possession of ammunition by a convicted felon and of possession of crack cocaine and marijuana with intent to distribute. He was sentenced to 137 months of imprisonment and a $5,000 fine. In this timely appeal, Cannon contends that the District Court erred (1) when it denied his motion to suppress, (2) when it failed to dismiss the possession of ammunition count, and (3) when it failed to exclude *150 evidence regarding a firearm found in his possession. We will affirm the judgment of the District Court.

I.

After the suppression hearing, the District Court concluded that the officers stopping Cannon’s car and arresting him had a reasonable, articulable suspicion of criminal activity justifying an investigatory Terry stop. It based this conclusion on the facts that (1) a confidential informant (“Cl”) had informed the FBI that Cannon was engaged in the business of selling cocaine and had asked the Cl to distribute cocaine for him, (2) the Cl, while not shown to have previously supplied information leading to an arrest, was known to and had met in person with Agent Parks so he could be held accountable for the information supplied, (3) the Cl supplied detailed and specific information which was largely corroborated by police surveillance, including information indicating that Cannon at the time of his arrest would be driving with cocaine to meet the Cl at an agreed upon location, and (4) the only mistaken information supplied by the Cl — the precise model and color of the car Cannon would be driving — did not impair his reliability.

We find no error in the District Court’s failure to suppress the drugs found on Cannon and in plain view in his car at the time of his arrest.

II.

Cannon insists that the charge in Count One of the indictment should have been dismissed because the ammunition may have been transported in interstate commerce prior to the enactment of the applicable statute. However, the District Court correctly found that it was immaterial when the ammunition was transported in interstate commerce so long as it had been so transported prior to Cannon’s possession of it. It is undisputed that Cannon’s possession of the previously transported ammunition came after the enactment of the applicable statute, and there is no retroactivity problem here.

III.

Cannon moved in limine to exclude evidence that Cannon possessed an operable antique firearm at the time of his arrest. He argued that the admission of such evidence would violate Fed.R.Evid. 403. The District Court did not abuse its discretion in denying this motion. This evidence was properly admitted because it was highly probative on the issue of whether Cannon was trafficking in drugs and provided the context in which he possessed the prohibited ammunition. United States v. Picklesimer, 585 F.2d 1199 (3d Cir. 1978).

IV.

The judgment of the District Court will be affirmed.