Spikes Tactical BCG M16 (HPT/MPI Bolt)

Crafted from Mil-Spec 8620 tool steel, the carrier group includes a shrouded firing pin. Its 5.3.1.2 MIL-STD-171 phosphate finish on both the inside and outside, along with a hard chrome bore, ensures durability. This complete bolt carrier group is designed for .223 REM/5.56 NATO/.300 AAC BLACKOUT and features a Mil-Spec tool steel carrier key with Grade 8 hardware, properly staked carrier key, and CNC-machined bolts from Carpenter No. 158. Each bolt undergoes shot peening per the current Mil-Spec, as well as individual High Pressure Testing (HPT) and Magnetic Particle Inspection (MPI). The inclusion of a tool steel extractor and Mil-Spec hard chrome firing pin further emphasizes the BCG’s quality and reliability.