450 BUSHMASTER AR15 Barrel 

The 450 Bushmaster was released in 2016 by Tim LeGendre of LeMag Firearms to achieve one-shot, one-kill for large game with an AR15. The straight wall cartridge is legal in states that prohibit hunting with bottleneck cartridges. The 450 Bushmaster delivers a 45 caliber projectile at a 2200 fps muzzle velocity, and the typical 250 grain, hollow-point (ballistic tip) round is highly lethal inside 250 yards. Standard AR15 magazines can be converted for use in a single stack configuration with a single stack follower, but 450 Bushmaster specific magazines are recommended for reliable operation. 

AR15Parts.com barrels are sourced from top US manufacturers including Ballistic Advantage, Shaw Barrels, Swan Machine, Wilson Arms, Wilson Combat, ZRO Delta, and others.

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