Odin Works AR-15 Bolt Carrier Group with Black Nitride Finish, Part ACC.223BCG

.223 BLACK NITRIDE The Odin Works AR-15 Bolt Carrier Group (Part ACC.223BCG) is engineered for optimal performance and durability in your rifle. Crafted from high-quality materials, this BCG features a case-hardened 8620 steel gas key attached with Grade 8 hardware and properly staked into a milled valley for secure operation. The gas key is made from 4130 steel and finished with a black nitride coating, providing corrosion resistance and enhanced longevity. The bolt itself is constructed from case-hardened 9310 steel with CNC-ground external surfaces, ensuring precise fit and reliable cycling in AR-15 style rifles. The bolt components are finished with a black nitride coating for added durability, and the extractor is made from 4340 steel with a mil-spec spring and O-ring, magnetic particle inspected, and high-pressure tested for safety and reliability. The mil-spec firing pin, made of 8740 steel, is center-less ground and hard chrome coated to withstand the rigors of firing. The cam pin is crafted from hardened 4340 steel, providing smooth movement and enduring performance. Designed to meet mil-spec dimensions, this bolt carrier group guarantees compatibility with AR-15 .223 caliber rifles, and its black finish not only enhances its appearance but also offers corrosion resistance. This component is made in the USA and is a perfect upgrade for builders seeking reliable, high-quality parts to ensure consistent firearm operation. Whether you're assembling a new rifle or upgrading an existing build, the Odin Works AR-15 Bolt Carrier Group delivers precision, durability, and performance for demanding shooting applications. Features: * Fits AR-15/M4 compatible style rifles * Mil-spec dimensions ensure compatibility and reliability * Constructed from case-hardened 8620 steel and 9310 steel for strength and durability * Black nitride finish provides corrosion resistance and surface hardness * Gas key made from 4130 steel, attached with Grade 8 hardware, properly staked for stability * Hardened 4340 steel cam pin for smooth operation * Mil-spec firing pin made of 8740 steel, center-less ground, and hard chrome coated * Bolt assembly with CNC ground external surfaces for precise fit * Extractor made from 4340 steel with spring and O-ring, magnetic particle inspected * Made in USA, designed for AR-15 .223 caliber rifles