{"product_id":"luth-ar-bc-a-223c-full-assembly-bolt-carrier-group-223-5-56-ar-15-manganese-phosphate","title":"Luth-AR BC-A-223C Full Assembly Bolt Carrier Group .223\/5.56 AR-15 - Manganese Phosphate","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eLuth-AR BC-A-223C\u003c\/span\u003e\u003c\/strong\u003e is a complete, fully assembled bolt carrier group (BCG) built for \u003cstrong\u003e.223 Remington\u003c\/strong\u003e and \u003cstrong\u003e5.56x45mm NATO\u003c\/strong\u003e AR-platform rifles. Designed as a drop-in component for mil-spec \u003cstrong\u003eAR-15\u003c\/strong\u003e and M16-pattern upper receivers, this BCG ships ready to install with the bolt, carrier, gas key, cam pin, firing pin, and retaining hardware all assembled at the factory.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe carrier and bolt are finished in \u003cstrong\u003emanganese phosphate\u003c\/strong\u003e (commonly abbreviated MGP or MGPHO), a heat-treated and corrosion-resistant coating that produces the classic matte black appearance favored on mil-spec AR components. The manganese phosphate finish also helps the BCG hold lubrication and resist wear during repeated cycling in field, range, and defensive use.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eEngineered for reliable extraction, ejection, and lock-up across a wide range of ammunition, the \u003cstrong\u003eBC-A-223C\u003c\/strong\u003e is a quality replacement or upgrade part for hunting, home defense, duty, and recreational AR-15 builds. Drop it into your upper, pair it with a quality barrel and gas system, and head to the range.\u003c\/span\u003e\u003c\/p\u003e","brand":"Luth-AR","offers":[{"title":"Default Title","offer_id":55082357883202,"sku":"196418","price":140.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_d6941de2-a07e-44a0-b152-2beba7236ea8.png?v=1784765704","url":"https:\/\/centerfiresystems.com\/products\/luth-ar-bc-a-223c-full-assembly-bolt-carrier-group-223-5-56-ar-15-manganese-phosphate","provider":"Centerfire Systems","version":"1.0","type":"link"}