{"product_id":"cmmg-bbl-300blk-16-1-mt-4140cm-sbn","title":"CMMG - 16.1\" Barrel Sub-Assembly, 4140CM SBN, 300 BLK","description":"\u003cp\u003eThe \u003cb\u003eCMMG 16.1\" Barrel Sub-Assembly\u003c\/b\u003e is expertly crafted for those looking to build a custom AR15 upper group. This barrel features a \u003cb\u003e4140CM steel construction\u003c\/b\u003e with a durable \u003cb\u003eSBN finish\u003c\/b\u003e, ensuring longevity and reliability in various shooting conditions. Designed specifically for the .300 BLK caliber, it includes a properly installed M4 barrel extension and is headspaced for optimal performance.\u003c\/p\u003e\u003cp\u003eWith a \u003cb\u003e1:7 twist rate\u003c\/b\u003e and an \u003cb\u003eMT contour\u003c\/b\u003e, this barrel is engineered to enhance accuracy and stability. The \u003cb\u003ecarbine-length gas port\u003c\/b\u003e and \u003cb\u003e0.750\" gas block\u003c\/b\u003e diameter make it compatible with a wide range of AR15 setups. Additionally, the barrel's \u003cb\u003e5\/8 x 24 muzzle threading\u003c\/b\u003e allows for the attachment of various muzzle devices.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eBarrel Length:\u003c\/b\u003e 16.1 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCaliber:\u003c\/b\u003e .300 BLK\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e 4140CM steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFinish:\u003c\/b\u003e SBN (Salt Bath Nitride)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTwist Rate:\u003c\/b\u003e 1:7\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eContour:\u003c\/b\u003e MT\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGas Port Location:\u003c\/b\u003e Carbine\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGas Block Diameter:\u003c\/b\u003e 0.750 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMuzzle Thread:\u003c\/b\u003e 5\/8 x 24\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eColor:\u003c\/b\u003e Black\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWeight:\u003c\/b\u003e 1.5 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eManufacturers Part Number:\u003c\/b\u003e 30D120A\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eProduct UPC:\u003c\/b\u003e 815835016238\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CMMG","offers":[{"title":"Default Title","offer_id":44956498100313,"sku":"RSR-CMMG30D120A","price":242.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/9860\/2329\/files\/cmmg_RSR-CMMG30D120A-1.jpg?v=1790394058","url":"https:\/\/mountainready.online\/products\/cmmg-bbl-300blk-16-1-mt-4140cm-sbn","provider":"mountainready.online","version":"1.0","type":"link"}