450 Bushmaster/.458 SOCOM Right Side Charging Upper Receiver/BCG Combo

This AR-15 BCA side charging Receiver and Bolt carrier group (BCG) combo will work with any mil-spec .450 Bushmaster or .458 SOCOM barrel.

This combo is a right side charging upper and BCG, it includes an AR15 bolt carrier group (BCG), a right-side charging handle, a threaded receiver plug, and the bear creek arsenal AR 15 right side charging upper receiver.