{"product_id":"cmmg-38ba423-mk3-bolt-carrier-group-308-win-7-62x51-nato-ar-10-black-phosphate-steel","title":"CMMG 38BA423 Mk3 Bolt Carrier Group .308 Win\/7.62x51 NATO AR-10 Black Phosphate Steel","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eCMMG 38BA423\u003c\/span\u003e\u003c\/strong\u003e is a complete \u003cstrong\u003eMk3 bolt carrier group\u003c\/strong\u003e purpose-built for \u003cstrong\u003e.308 Win \/ 7.62x51mm NATO\u003c\/strong\u003e AR-10 and LR-308 pattern rifles and pistols. Designed from the ground up as a high-pressure BCG, it gives your big-bore AR build the strength and reliability needed to run \u003cstrong\u003e.308 Winchester\u003c\/strong\u003e ammunition with confidence.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe bolt is machined from \u003cstrong\u003e9310 steel\u003c\/strong\u003e with a \u003cstrong\u003eblack phosphate\u003c\/strong\u003e finish, while the carrier is forged from \u003cstrong\u003e8620 steel\u003c\/strong\u003e, \u003cstrong\u003echrome lined\u003c\/strong\u003e for extended service life, and finished in matching black phosphate. The extractor is cut from \u003cstrong\u003eS7 tool steel\u003c\/strong\u003e for durability at the rim, and the bolt ships with the extractor, ejector, and gas rings already installed so it drops straight into a Mk3-spec upper.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eEngineered for proper headspacing and reliable cycling with CMMG Mk3 and other LR-308 \/ AR-10 platform uppers, the 38BA423 delivers the corrosion resistance and lubricity needed for hard-use rifles and suppressed hosts alike.\u003c\/span\u003e\u003c\/p\u003e","brand":"CMMG","offers":[{"title":"Default Title","offer_id":54992481255746,"sku":"48555","price":254.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_f543751a-fcbd-40a2-8d8d-38dd10ee542c.png?v=1784245084","url":"https:\/\/centerfiresystems.com\/products\/cmmg-38ba423-mk3-bolt-carrier-group-308-win-7-62x51-nato-ar-10-black-phosphate-steel","provider":"Centerfire Systems","version":"1.0","type":"link"}