Class of 1999
The following firearms can be seen in the 1990 sci-fi film The Class of 1999:
A Beretta 92 FS can be briefly seen in the hands of Mohawk (Sean Gregory Sullivan), when the tries to kill Mr. Bryles (Patrick Kilpatrick). Angel Culp (Joshua Miller), the younger brother of Cody Culp; was briefly seen loading a Beretta 92FS at home later in the film.
Some CAR15s can be seen in the hands of various students throughout the movie, especially in the hands of the Razorheads and the Blackhearts. Department of Educational Defense officers at Kennedy High School can also be seen armed with CAR-15s.
Heckler & Koch HK94A3
The Heckler & Koch HK94A3 is used throughout the movie.
Fake Heckler & Koch MP5K
What would appear to be a mocked up version of the Heckler & Koch SP89 resembling the Heckler & Koch MP5K is one of the most recurring guns used in the movie in the hands of both the Razorheads and the Blackhearts. In particular, it is used by Hector (James Medina), and also by Ms. Connors (Pam Grier)
M16 (SP1) with fake M203 grenade launcher
Some students can be seen firing M16 (SP1) rifles equipped with Fake M203 Grenade Launchers. It would seem to be the the M16s fitted with faux M203 grenade launchers resemble the very same gun used by Arnold Schwarzenegger in Predator.
A stainless I.M.I Micro Uzi with an extended barrel and some sort of scope is used by some students, notably by the main character, Cody Culp (Bradley Gregg). This is one of the same custom nickel-plated Micro Uzis used in The Running Man, Predator 2 and Total Recall.
SWD/Cobray Street Sweeper
What appears to be a SWD/Cobray Street Sweeper can be briefly seen during a party attended by the members of the Blackhearts gang.
Blackhearts member Curt (Jason Oliver) fires the Ruger AC 556 at the Razorheads during the shootout between the gangs. From closer examination of the AC-556 used by Curt, it appears that the rifle is fitted with aftermarket black synthetic furniture with a pistol grip and folding stock.
Desert Eagle Mark I
Some students can be seen firing some shotguns with a pistol grip. Benelli M3Ts perhaps?