The Kak Industry LLC K-spec M16 Bolt Carrier Group is designed specifically for the 6.5mm Grendel Type 2 cartridge offering superior performance and reliability for AR-15 platforms. Featuring a durable chrome and phosphate finish in black this BCG ensures long-lasting protection against wear and corrosion providing smooth operation even under rigorous conditions. Perfect for enthusiasts looking to enhance their AR-15 build this bolt carrier group combines precision engineering with robust construction to deliver exceptional accuracy and dependability.