Toolcraft Black Nitride BCG AR10 308 OCKS Bolt Carrier Group

Toolcraft Black Nitride BCG AR10 308 OCKS Bolt Carrier Group OCKS Screws properly staked at Toolcraft The Toolcraft Black Nitride BCG AR10 / 308 Bolt Carrier Group – Black Nitride is a durable, U.S.-made component designed for use in AR-10 platforms chambered in .308 Winchester and related cartridges within the 308 parent family. Manufactured with a 9310 steel bolt and an 8620 steel carrier, this BCG is fully compatible with DPMS-pattern rifles and offers reliable cycling for a variety of AR-10 builds. The Black Nitride finish enhances surface hardness, corrosion resistance, and lubricity, making this BCG easier to clean and longer lasting under high-volume use. The bolt is MPI-inspected for integrity and includes a machined extractor with a Mil-Spec O-ring, ensuring proper case retention and extraction. The carrier features a properly staked 4140 steel gas key with OCKS screws and forward assist serrations to ensure full functionality in DPMS-compatible receivers. Toolcraft is an established OEM for the U.S. military and several top rifle manufacturers, known for producing high-quality bolt carrier groups trusted by professional users. All Toolcraft BCGs purchased through us are covered by a 100% hassle-free lifetime warranty, ensuring long-term reliability and customer confidence. This model is compatible with most calibers in the .308 Winchester cartridge family. Bolt Shot Peened; MPI Inspected Bolt Material 9310 Steel Bolt Finish Black Nitride Pattern DPMS LR308 Extractor O-ring Mil Spec Carrier Material 8620 Steel, Toolcraft Proprietary Carrier Finish Black Nitride Carrier Design Full Auto Style, Foward Assist Serrations Gas Key Material 4140 Steel; OCKS Gas Key Screws Cam Pin Material 8620 Steel Cam Pin Finish Black Nitride Firing Pin Material 8740 Steel; Hard Chrome Plated