The following weapons appear in the film Predators:
Predators is the 2010 sequel to the films Predator and Predator 2. Produced by Robert Rodriguez, it stars Adrien Brody as Royce, a mercenary captured and sent to a Predator homeworld along with seven other 'human' predators.
Royce (Adrien Brody), the leader of the humans carries an AA-12 automatic 12 Gauge shotgun throughout the movie, it is fitted with a drum magazine loaded with Frag-12 rounds, accompanied by a Surefire M900 weaponlight foregrip, and custom camo paint that appears to be similar to the US Army's pixelized UCP pattern.
M134 Hand held Minigun
Nikolai (Oleg Taktarov), a member of the Russian VDV Paratroops carries a hand-held M134 Minigun substituting for a GShG 7.62mm machinegun thats described in the script, reminiscent of the gun used by Jesse Ventura in the original film. Nikolai uses the Minigun to slay Predator hounds and to lay down suppressing fire on Predators before the gun is destroyed in battle by a well aimed shot from a Predator Plasmacaster. When we first see him use it, the barrels don't appear to be spinning.
Blaser R93 LRS2
Isabelle (Alice Braga), an IDF sniper, carries a Blaser R93 Sniper Rifle fitted with an Elcan DigitalHunter scope (substituting for the Heckler & Koch PSG1 described in the script). In several scenes, we hear the scope adjusting even though she isn't hitting any of the buttons. Isabelle takes down Predator hounds and another creature on the planet with the rifle and also uses it to wound a Predator near the film's finale.
AKMS
Mombasa (Mahershalalhashbaz Ali) , a member of an RUF death squad, carries an AKMS rifle with the stock folded up throughout the movie, he once uses it to save Stans from an attacking Predator Hound when they first encounter them.
Heckler & Koch MP5K
Cuchillo (Danny Trejo), a Mexican Drug Cartel enforcer, is seen with two Heckler & Koch MP5K's strapped to his back, in a manner similar to Chuck Norris' Mini Uzi harness in Invasion USA.
The main sidearm of Isabelle (Alice Braga). She draws it to face a Predator Hound after her rifle runs dry. She fires a couple of rounds at an approaching hound to no avail then prepares to kill herself with it for a painless death before the Predator Hound can get her, only to be saved at the last minute when the Predators call the Hounds back.
Beretta 92FS Inox
A Beretta 92FS Inox with custom grips and a compensator is carried by Hanzo (Louis Changchien), a Yakuza assassin who uses it until he acquires a katana from Noland's weapon cache.
Tokarev TT33
After his Gatling Gun is destroyed Nikolai is seen using a Tokarev TT33.
Mk 2 hand grenade
A Mk 2 hand grenade is seen among the weapons in Noland's (Laurence Fishburne) arsenal. Royce later strings several of them together in a trap for the 'Beserker' Predator.
M18A1 Claymore
When Nikolai (Oleg Taktarov) sees Noland's weapons cache, he eyes a M18A1 Claymore anti-personnel mine on the table. He's startled because its a Vietnam-era Claymore, revealing just how long Noland has been on the planet. Nikolai apparently grabbed the Claymore mine offscreen, because he is seen using it prominently later.
Noland's weapons cache
When the group are taken to Noland's cave, they see he's collected a mixture of weapons, some human and some alien. Of the human weapons there are CAR-15, S&W M29 .44 Magnum and an unknown shotgun. There is also an M79 grenade launcher, though it is only used to fire a flare.