Cobra is a 1986 action film starring Sylvester Stallone as Lieutenant Marion "Cobra" Cobretti, a Los Angeles police detective who is assigned to protect a witness from a cult gang of murderers on the streets of Los Angeles. The film was directed by George Pan Cosmatos, who was just coming off directing Stallone in the blockbuster sequel Rambo: First Blood Part II. While opening at number one at the box office, the film ultimately proved to be a critical and financial disappointment. Sylvester Stallone adapted the screenplay from the novel Fair Game (which was adapted again into a 1995 action film starring William Baldwin and Cindy Crawford).
The following weapons were used in the film Cobra (1986):
Lt. Marion 'Cobra' Cobretti (Sylvester Stallone) carries a customized Colt Gold Cup National Match as his sidearm throughout the film. According to armorer Steve Karnes, the weapon was special-ordered and built-up by Colt for Stembridge Gun Rentals to provide for the film. The weapon was fitted with custom grips and a converted 9x19mm barrel and slide. Special thanks to Mr. Karnes for providing info on this weapon.
ASP-9
Lt. Marion 'Cobra' Cobretti (Sylvester Stallone) is to said to also carry an ASP 9, most likely as a backup gun. In the current release of the film the ASP 9 is not ever seen being used. It may have been rented out for the film and the scenes were cut or script changes made the gun unnecessary to use.
Colt Government Model
Sergeant Tony Gonzales (Reni Santoni), Cobretti's partner, carries a Colt Government Model near the end of the film. His Gov't Model appears to have a stainless hammer and trigger. He is previously seen with what appears to be a Smith & Wesson Model 36.
In the opening scenes the Smith & Wesson Model 15 is used by several of the cops. A security guard uses one when Ingrid is first attacked by the Night Slasher after a modeling shoot.
The Jatimatic SMG is used by Cobra in the movie. In several scenes the Jatimatic is seen fitted with an early model Laser Products Corp. (today known as Surefire) laser sight - most likely a LPC Model 7.
The Jatimatic is a Finnish 9mm submachine gun developed in the late 1970s and early 1980s by Jali Timari. The submachine gun made its debut in 1983. The Jatimatic was manufactured in very limited numbers (approx. 400) initially by Tampereen Asepaja Oy of Tampere and later by Oy Golden Gun Ltd (as the GG-95 PDW, re-introduced unsuccessfully in 1995). The firearm was designed primarily for police, security forces and armored vehicle crews. It was never adopted into service by the Finnish Defence Forces, although the later GG-95 PDW version was tested by the FDF in the 1990s; the conclusion of the tests was that the GG-95 was not suitable as a service weapon.
Heckler & Koch HK94
Two SWAT members are seen with Heckler & Koch HK94s on top of the supermarket roof at the beginning of the film.
Nancy Stalk (Lee Garlington) carries a pistol-gripped Ithaca 37 with an extended magazine tube when chasing after Cobra and Ingrid at the end of the film.
Remington 870
A gang member uses a Remington 870 at the motel shootout.
What appears to be a scoped Winchester Model 70 is seen twice in the film - First in the hands of one of the SWAT officers during the supermarket indicent, and later in the hands of one of Night Slasher's gang members.
M16 Rifle
A gang member is seen with an M16 Rifle (likely an AR-15 SP1) with three-prong flash hider.
Other
MK 2 Hand Grenade
When Cobra is getting prepared at the motel the night before the shootout, he takes three MK 2 Hand Grenades out of his bag.