Spikes ST5BG01 Bolt Carrier Group 223 Rem,5.56x45mm NATO Black Phosphate Steel AR-15, M16 Full Auto

Spikes' M-16 BCG (Bolt Carrier Group) features a Mil-Spec carrier constructed of 8620 tool steel with a shot peened bolt, Mil-Spec gas key, retaining pin, and Mil-Spec extractor. This model has a black phosphate finish and laser engraved Spikes Tactical spider logo.