The following weapons were used in the film Underworld: Awakening:
Modified Beretta 92FS Inox
The signature weapons of Selene (Kate Beckinsale) in this film are a pair of modified Beretta 92FS Inox pistols, converted to full-auto and fitted with extended magazines and large compensators that extend all the way back along the frame to the trigger guard. The same compensator can be seen on the customized Taurus PT92CS in Crying Freeman, and Dark Angel.
A number of standard Beretta 92FS pistols can be seen in the armory.
Modified Beretta 92FS
Selene's (Kate Beckinsale) signature weapon of choice, full-auto Beretta 92FSs, are seen as she recaps the first two movies.
Selene is seen firing her P99s in a scene from the first film as she recaps the previous movies.
The human guards at the Antigen facility where Seline is being held are armed with visually modified STI GP6 pistols. The modifications to the pistol bears a slight resemblance to the Vektor CP1 pistol.
A number of stainless Ruger P89s can be seen in an armory.
Custom Human Rifles (modified FN P90)
Throughout the film, several human soldiers are armed with custom rifles as they "cleanse" the city of all the non-humans. This rifle appears to be an FN P90 housed in the futuristic shell.
Heckler & Koch MP5A3
Vampires and Lycans can be seen using Heckler & Koch MP5A3s fitted with a ACOG scopes, RIS foregrips, flashlights, vertical grips as well as an UMP-style stock.
Several vampires are seen with Beretta M12s when the coven is attacked.
One of the fighters is seen with a folding stock SPAS-12.
Mossberg 500 Cruiser
David (Theo James) carrries a Mossberg 500 Cruiser with a stainless steel finish in the final battle.
Remington 870 pump-action shotguns fitted with Surefire dedicated forend weaponlights, door breaching muzzle brakes, ghost ring sights, and Knoxx Specops stocks can be seen.
Assault Rifles and Carbines
The Norinco QBZ-97B appears to be the main weapon used by the Antigen guards in the film, and can be seen fitted with a red dot sight.
Beretta Cx4 Storm
Heckler & Koch G36
A number of Heckler & Koch G36s can be seen in an armory. The exact model is not possible to determine as the forend and barrel is not visible.
Numerous M16-type rifles are seen as the vampires prepare of battle. At least two on the right can be identified as A4s by the knobs on the side of their carrying handles.
An L85 of unknown model is seen as the vampires load up.
Another vampire fighter is seen with a Steyr AUG.
A Browning M2HB can be seen mounted on the roof of a HMMWV.
Sage Control Ordnance Deuce Revolution
Detective Sebastian (Michael Ealy) can be seen with a Sage Control Ordnance Deuce Revolution double barreled over-and-under grenade launcher that is also fitted with an EOTech and vertical grip. In the trailer, he is seen firing this weapon several times, but in the final film, he only fires it once.
A human soldier can be seen wielding a custom flamethrower during Selene's escape.
M26 hand grenade
Numerous silver M26 hand grenade are seen in the vampire armory and Selene carries several as she rampages through the Antigen facility at the end..