450 BUSHMASTER UPPERS
Every 450 BUSHMASTER Upper we sell can be configured to your specifications. Customize your 450 BUSHMASTER Complete Upper with an optic, muzzle device, rail, bolt carrier group, magazine, or charging handle from our matched selection. Your 450 BUSHMASTER AR 15 Upper Receiver will arrive turn-key and ready to shoot out of the box.
450 BUSHMASTER achieves one-shot, one-kill for large game inside 250 yards by delivering a 45 caliber, 250 grain projectile at 2200 fps from the muzzle of an AR-15. This straight wall ammo is legal in states that prohibit hunting with bottleneck cartridges.