BC-15 | .450 Bushmaster / .458 SOCOM Bolt Action Style Upper Receiver/BCG Combo Builders Kit

This AR-15 BCA Bolt Action Style Builders Kit includes Receiver and Bolt carrier group (BCG) combo will work with any mil-spec .450 Bushmaster or .458 SOCOM barrel. If using a barrel that is ported you will need to use a gas barrel sleeve or turn the gas block backwards to cover the port.

WARNING: This product can expose you to chemicals, such as lead and other petroleum products, which are known to the State of California to cause cancer and birth defects or other reproductive harm.  For more information go to the California P65 Warning site.