Cop is a 1988 crime thriller starring James Woods as Lloyd Hopkins, an L.A. police detective who lives on the edge while taking it to the extreme in his pursuit of a serial killer. This film was adapted from the novel "Blood on the Moon" that was written by James Ellroy (the author of L.A. Confidential).
The following weapons were used in the film Cop:
Colt Detective Special
Det. Dutch Peltz (Charles Durning) uses a 12-gauge Ithaca 37 when he and attempt to take down a suspect sitting in a car. An Ithaca with a sawed off stock is seen in a gun rack at the home of Sheriff's Deputy Delbert 'Whitey' Haines (Charles Haid). Both Haines and Hopkins are seen using it.
IMI Micro Uzi
An IMI Micro Uzi is used during the gym shootout.
Haines' Gun Rack
Det. Hopkins searches Haines' home where he finds a gunrack containing an Ithaca 37, a Winchester Model 70 rifle and an AR-15.