{"product_id":"cmmg-bolt-assembly-ar15","title":"CMMG - Bolt Assembly for AR15 - Phosphate Finish","description":"\u003cp\u003eThe \u003cb\u003eCMMG Bolt Assembly\u003c\/b\u003e for the AR15 platform is a robust and reliable component designed to enhance your rifle's performance. This assembly comes pre-installed with an ejector, extractor, and gas rings, ensuring a seamless integration into your firearm. CMMG is renowned for its high-quality firearm components, and this bolt assembly is no exception, backed by their Lifetime Quality Guarantee.\u003c\/p\u003e\u003cp\u003eConstructed from \u003cb\u003e9310 Steel\u003c\/b\u003e with a durable phosphate finish, the bolt is engineered for longevity and reliability. The extractor is made from \u003cb\u003e4140 Steel\u003c\/b\u003e, also featuring a phosphate finish, providing excellent wear resistance and functionality. This assembly is compatible with multiple calibers including \u003cb\u003e.300 BLK, .350 Legend, and 5.56mm\u003c\/b\u003e, making it a versatile choice for various shooting needs.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e Bolt made from 9310 Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFinish:\u003c\/b\u003e Phosphate for both bolt and extractor\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eExtractor Material:\u003c\/b\u003e 4140 Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePre-installed Components:\u003c\/b\u003e Ejector, Extractor, and Gas Rings\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompatibility:\u003c\/b\u003e Supports .300 BLK, .350 Legend, and 5.56mm calibers\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePlatform:\u003c\/b\u003e Designed for the Mk4 AR15\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eColor:\u003c\/b\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLifetime Quality Guarantee\u003c\/b\u003e from CMMG\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eBolt:\u003c\/b\u003e 9310 Steel, Phosphate Finish\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eExtractor:\u003c\/b\u003e 4140 Steel, Phosphate Finish\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePlatform:\u003c\/b\u003e Mk4\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCaliber:\u003c\/b\u003e .300 BLK, .350 Legend, 5.56mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eColor:\u003c\/b\u003e Black\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CMMG","offers":[{"title":"Default Title","offer_id":44945424973913,"sku":"RSR-CMMG55BA457","price":87.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/9860\/2329\/files\/cmmg_RSR-CMMG55BA457-1.jpg?v=1790387658","url":"https:\/\/mountainready.online\/products\/cmmg-bolt-assembly-ar15","provider":"mountainready.online","version":"1.0","type":"link"}