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A dressed up AKM rifle can be seen in the film, used by Max (Matt Damon). It fires airbusting ammunition.
FN SCAR-L
Vektor R4
The resistance fighter escorting Frey and Matilda carries a well-worn Vektor R4 assault rifle.
AR-15
An AR-15 variant can be seen in the film.
Norinco QBZ-97B
One of the resistance fighters who accompanies Spyder to Elysium carries a Norinco QBZ-97B
Chem Rail
Max (Matt Damon) grabs a Chemrail while fighting in the armory on Elysium. The weapon has a high rate of fire, and its high-velocity rounds rip right through walls and shred enemies. However, the blazing rate of fire forces Max to ditch the weapon for a fresh gun quickly. Judging by the name, firing effects, and the fact it seems to fire semi-normal ammunition, it is probably a combination of normal rifle firing caseless rounds with electromagnetic rails to increase velocity.
Shotguns
Remington 870
Max De Costa (Matt Damon) uses a Remington 870 with a short barrel, M4-style stock, a doorbreaching muzzle device, and Surefire weaponslight foregrip.
Machine guns
Fictional door gun
A door gun is mounted on the attack shuttle Kruger (Sharlto Copley) and his men ride.
Knight's Armament Chain SAW
Manuel (Adrian Holmes) uses a KAC Chain SAW, an M249 Para variant fitted with a Terminator 2-style chainsaw grips, an M203 grenade launcher, and a suppressor during the data heist
Launchers
Missile launcher
Kruger (Sharlto Copley) uses a rocket launcher that looks similar to a M202A1 FLASH. It fires ground-to-space missiles at about 518 meters per second, or 45 times escape velocity.