{"product_id":"kak-ar15-bcg-m16-556-clp-c158-blk","title":"KAK Industry AR15 BCG M16 5.56 CLP C158 Black","description":"\u003cp\u003eThe KAK Industry AR15 BCG is a full-auto profile M16 bolt carrier group designed for AR-15 platforms chambered in 5.56 NATO. This bolt carrier group delivers reliable cycling and extraction with proper Carpenter 158 steel construction in the bolt. The M16 profile carrier provides additional mass over semi-auto carriers, which can improve reliability with certain gas system configurations, suppressed setups, or when using adjustable gas blocks.\u003c\/p\u003e\u003cp\u003eThe bolt is machined from C158 steel with a shot-peened finish to improve fatigue resistance, while the carrier features a black Carpenter 158 steel construction with a manganese phosphate finish for corrosion protection. The gas key is properly staked per mil-spec standards. This is a complete, ready-to-install BCG that requires no additional fitting—simply drop it into a mil-spec AR-15 upper receiver. No gunsmithing required.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Bolt Carrier Group (BCG)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearms:\u003c\/strong\u003e AR-15, M16, and AR-15 pattern rifles chambered in 5.56 NATO \/ .223 Remington\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBolt Material:\u003c\/strong\u003e Carpenter 158 steel, shot-peened\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarrier Profile:\u003c\/strong\u003e M16 full-auto (full mass)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black manganese phosphate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas Key:\u003c\/strong\u003e Properly staked, mil-spec\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Drop-in, no gunsmithing required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Complete bolt carrier group (carrier, bolt, cam pin, firing pin, retaining pin)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KAK Industry","offers":[{"title":"Default Title","offer_id":47938715648255,"sku":"KAK425-3312-003","price":125.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/4479433.jpg?v=1766526377","url":"https:\/\/doublestackstore.com\/products\/kak-ar15-bcg-m16-556-clp-c158-blk","provider":"Double Stack Store","version":"1.0","type":"link"}