AVPR: Aliens vs. Predator - Requiem
The following weapons were used in the movie Aliens vs. Predator: Requiem:
Sheriff Morales (John Ortiz) carries a 2nd Generation Glock 17 as his law enforcement sidearm. It is later seen in Ricky Howard's (Johnny Lewis) possession as he fires it at an Alien Warrior approaching the medical chopper on the roof of the hospital.
The Survivor that Kelly O'Brien and her daughter, Molly (Ariel Gade) find in the cemetery (in the extended version of the film) appears to have a stainless steel Colt Python before he is killed by the Predator.
The survivors also acquire a number of Beretta 92FS pistols from the National Guardsmen's arsenal stashed in the Stryker. Kelly O'Brien (Reiko Aylesworth) is seen wielding one of these pistols near the end of the film.
Heckler & Koch MP5A3
Most of the Special Forces Soldiers at the helicopter crash site at the end of the movie have Heckler & Koch MP5A3s fitted with suppressors, Surefire fore-ends, and red-dot scopes.
Heckler & Koch MP5SD3
At least one of the Special Forces soldiers at the helicopter crash site at the end of the movie has a Heckler & Koch MP5SD3, instead of an MP5A3 with a detachable suppressor.
Sheriff Morales (John Ortiz) carries a Remington 870 with an extended tube, heat shield, and Surefire fore-end in his Chevy Suburban as a patrol shotgun. He later uses it to fend off the Aliens before the nuke is dropped on the town.
Winchester Model 1200
Almost all of the National Guard personnel in the movie carry M4A1 Carbine assault rifles, most of which are fitted with AN/PVS-14s. After the survivors stumble upon the location where the National Guard troops were killed by the Aliens, they take a number of M4A1s from the Stryker APC and use them heavily in the climax of the film. Kelly O'Brien (Reiko Aylesworth) uses one to fight off the Aliens on the rooftop of the hospital.
A soldier is armed with a weapon that has a carbine length foregrip with an M16A1-style receiver and an M4 style barrel.
When the National Guard come to Gunnison, at least one of the Humvees is fitted with a Browning M2HB heavy machine gun, which is fired at the Aliens. In a deleted scene, O'Brien is seen firing the Browning M2 from atop the Stryker vehicle.
Daewoo K3 (visually modified to resemble FN Minimi SPW)
One of the National Guard Troops can be seen firing a Daewoo K3 light machine gun that has been visually modified to resemble the FN Minimi SPW when Aliens ambush the National Guard when they first enter Gunnison. Guns just like this one have been seen in other movies and TV shows, such as Stargate: SG1, Stargate: Atlantis, and Postal, where they are often mistaken for M249 variants by viewers.
M249 SAW Paratrooper
One of the Special Forces Soldiers at the helicopter crash site at the end of the movie has an M249 SAW Paratrooper light machine gun with an Elcan C79 Optical Sight and a sound suppressor attached (probably a Gemtech).
A Cobray 37mm Launcher can briefly be seen on a National Guardsman's M4 before he is attacked by an Alien.