.450 Bushmaster Complete Assembled Upper – Right Handed


Ejection Port Cover

Upgrade Handguard (Optional)

Upgrade Muzzle Devise (Optional)

Charging Handle


SKU: 450-CAU-RH Categories: ,


Includes a 1:24 twist 18″ lightweight barrel, complete bolt carrier group, charging handle, mid-length GI hand guards, and Tromix muzzle brake. Barrel muzzle is threaded 11/16-24. This upper on a standard M4 style lower will result in a complete rifle weight of 6.1 pounds.