Det. Billy Rosewood's sidearm later in the film is a Smith & Wesson Model 29 with an 8 3/8 inch barrel. A blank-firing version fitted with a laser sight is seen fired at the Beverly Hills Gun Club by Karla Fry (Brigitte Nielsen).
Smith & Wesson Model 15
Karla Fry takes a S&W Model 15 from a security guard and kills Charles Kane with it.
An AMC .44 AutoMag is used by one of the robbery crew during the Adriano's jewelry heist at the beginning of the film. One of the plot points is that .44 Automag rounds are too expensive to make, so a .308 cartridge is cut down to fit the Automag. The Automag is also used by one of Charles Kane's men to take out Axel at the 385 North Club.
Colt Python
Billy uses a Colt Python earlier in the film at the club shootout. One of Thomopolis' men has one in the final shootout.
Heckler & Koch P7M13
Used by female assassin Karla Fry (Brigitte Nielsen) during the jewelry robbery and then in the Bogomil shooting.
Desert Eagle Mark I
A Desert Eagle is pointed at Axel before the final shootout and then is held by Karla Fry (Brigitte Nielsen) as she is about to shoot Axel.
Beretta 92F
A blank-firing Beretta 92F fitted with a laser sight is seen being used by Axel and Karla at the Beverly Hills Gun Club.
Axel can't seem to get the blank firing weapon and decides to open fire on the screens with his Browning Hi-Power.
Sgt.Taggart (John Ashton) uses a SPAS 12 shotgun in the final shootout.
Remington Model 870
The Remington 870 shotgun with a pistol grip is a weapon used by Charles Kane (Dean Stockwell) as part of the robbery crew at the racetrack.
Mossberg 500 Cruiser
Charles Kane's (Dean Stockwell) Remington 870 briefly switches to a Mossberg 500 Cruiser in a continuity error. Detective Billy Rosewood decides to use two Mossberg 500 Cruisers for the final shootout.
M16A1
Several of Thomopolis' men open fire on Axel and the guys with M16A1 rifles.
Heckler & Koch MP5K
One of the robbery crew uses a Heckler & Koch MP5K during the jewelry heist.
Heckler & Koch HK94
Thomopolis's men uses Heckler & Koch HK94s during the final shootout. It has been modified with a ventilated barrel shroud and a vertical foregrip. It looks similar to the version used by Arnold Schwarzenegger in the film Raw Deal.
Axel discovers that Billy hangs a variety of handguns on his bedroom door: A Smith & Wesson Model 36 with white grips, a Colt Python with an early laser sight (note the battery pack on bottom of the grip), a Browning Hi-Power, an AMC Automag, and a Colt Python with pachmayr grips (as well as a few others that are out of view).