{"product_id":"cmmg-bcg-ar15-6-5grn-6mm-arc","title":"CMMG BCG AR15 6.5 Grendel\/6mm ARC – Bolt Carrier Group for AR-15 Platform","description":"\u003cp\u003eThe CMMG 6.5 Grendel\/6mm ARC Bolt Carrier Group is engineered specifically for AR-15 platform rifles chambered in 6.5 Grendel or 6mm ARC. These cartridges require a bolt face and carrier geometry different from standard 5.56\/.223 configurations, and this BCG delivers the proper headspacing and extraction needed for reliable cycling with these larger-case intermediate cartridges. If you're building or converting an AR-15 for long-range precision or hunting with 6.5 Grendel or 6mm ARC, this is a required component.\u003c\/p\u003e\u003cp\u003eManufactured from 8620 steel with a phosphate finish, this carrier group is built to CMMG's mil-spec standards for durability and consistent function. The bolt is properly sized for the Grendel\/ARC case head and features the correct extractor and ejector configuration. Installation is drop-in for any mil-spec AR-15 upper receiver, though proper headspacing should always be verified when assembling a new barrel and bolt combination.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Bolt Carrier Group\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearms:\u003c\/strong\u003e AR-15 platform rifles chambered in 6.5 Grendel or 6mm ARC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 8620 steel carrier and bolt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Phosphate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Drop-in (verify headspacing with barrel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Bolt carrier, bolt assembly, gas key, cam pin, firing pin, firing pin retaining pin\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CMMG","offers":[{"title":"Default Title","offer_id":47934702813439,"sku":"CMMG64BA44F","price":194.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/2137806.jpg?v=1766477049","url":"https:\/\/doublestackstore.com\/products\/cmmg-bcg-ar15-6-5grn-6mm-arc","provider":"Double Stack Store","version":"1.0","type":"link"}