New Ar 15 Nickel Boron Bolt Carrier Group Background. If there is no bolt carrier group, your gun won't fire. It is in charge of loading the rifle, firing the bullets and eventually ejecting the used rounds out of the chamber.
All of the bolt carrier groups from right to bear arms and supply include special features that provide the best bang for your buck.
This bolt carrier group is magnetic particle inspected and shot peened for added durability. It is a full auto bcg and has forward. Spike's has exceptional quality control and the price point makes this a very compelling option. Failzero 458 socom exo nickel boron bolt carrier group $ 179.99 $ 159.99 read more.