Aero Precision Complete .308 7.62x51mm NATO Bolt Carrier Group with Mil-Spec Finish

The Aero Precision APRH308184 Complete .308 Win, 7.62x51mm NATO Black Phosphate Steel M5 Platform is an exceptional bolt carrier group designed for serious rifle enthusiasts and builders looking to enhance their big-bore rifle performance. Crafted from high-quality 8620 tool steel for the carrier and 9310 steel for the bolt, this BCG features a durable mil-spec phosphate finish that ensures longevity and resistance to wear. The gas key is constructed from 4130 steel and is securely attached with Grade 8 hardware, properly staked for reliability during operation. The firing pin, made from 8740 steel and hard chrome coated, guarantees consistent ignition, while the forward assist serrations provide added functionality. This complete assembly includes a laser-engraved Aero Precision logo, adding a touch of style to your build. The bolt is meticulously engineered with case-hardened 9310 steel, shot peened, and phosphate coated for enhanced durability, and features a precision fit achieved through CNC grinding post-heat treatment. Designed to accommodate a range of .308-based cartridges, including .338 Federal, this versatile BCG is ideal for those seeking to build or upgrade their AR .308 compatible rifles. Whether for competitive shooting, hunting, or tactical applications, the Aero Precision APRH308184 delivers the performance and reliability that serious shooters demand.