The APEX Biometric Assault Rifle is a weapon produced by APEX Corporation. It is a bullpup rifle with a 30-round magazine and a special combat optic, as a standard issue assault rifle for all Peacekeeper Soldiers and Captains, with the exception of the Shock Trooper.
- A full version with a yellow bolt and a foregrip is seen on the intro of the game. Although it's never used by all enemies, except in some scenes.
- It is based on a real-life SAR-21, with the ergonomic handle much more futuristic.
- A variant, attached with a silencer/long muzzle brake variant is commonly used by Peacekeeper Captains. Despite it's an attached with a silencer or long muzzle brake, it still emits loud gunfire noise.