{"product_id":"cmmg-ar-15-300-aac-blackout-8-barrel-sub-assembly-nitride","title":"CMMG AR-15 300 AAC Blackout 8\" Barrel Sub-Assembly - Nitride","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eCMMG 8.0-inch MT Barrel Sub-Assembly\u003c\/strong\u003e\u003c\/span\u003e is an \u003cstrong\u003eAR-15\u003c\/strong\u003e barrel component chambered in \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003e300 AAC Blackout\/Whisper (7.62x35mm)\u003c\/strong\u003e\u003c\/span\u003e, also known as \u003cstrong\u003e300 BLK\u003c\/strong\u003e. It is intended for building a custom AR-15 upper receiver group, with an \u003cstrong\u003e8 in\u003c\/strong\u003e length, \u003cstrong\u003epistol-length gas-port location\u003c\/strong\u003e, and CMMG \u003cstrong\u003eMT medium-taper profile\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eBuilt from \u003cstrong\u003e4140 chrome-moly steel\u003c\/strong\u003e, the barrel has a \u003cstrong\u003eblack salt-bath nitride finish inside and out\u003c\/strong\u003e. It uses a \u003cstrong\u003e1:7\u003c\/strong\u003e twist rate, a \u003cstrong\u003e.750 in gas-block journal\u003c\/strong\u003e, and \u003cstrong\u003e5\/8x24\u003c\/strong\u003e muzzle threads for compatible muzzle devices. The assembly includes a properly installed \u003cstrong\u003eM4 barrel extension\u003c\/strong\u003e and is factory headspaced.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThis barrel sub-assembly weighs \u003cstrong\u003e1.3 lb\u003c\/strong\u003e and has \u003cstrong\u003eno sights\u003c\/strong\u003e. A receiver, bolt carrier group, gas block, gas tube, handguard, muzzle device, and sights are not included.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eOffered in \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eNew condition\u003c\/strong\u003e\u003c\/span\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eDISCLAIMER:\u003c\/span\u003e\u003c\/strong\u003e Firearms and receivers are subject to state-specific shipping restrictions and must be transferred through a valid FFL dealer. Please visit \u003ca href=\"\/shipping-restrictions\/\" target=\"_blank\"\u003eour shipping restrictions page\u003c\/a\u003e to review all applicable restrictions for your state. Subject to change.\u003c\/span\u003e\u003c\/p\u003e","brand":"CMMG","offers":[{"title":"Default Title","offer_id":54988407079234,"sku":"3193","price":167.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_9a774d7b-7abd-41ed-9d18-02a52bbe4f4b.png?v=1784133270","url":"https:\/\/centerfiresystems.com\/products\/cmmg-ar-15-300-aac-blackout-8-barrel-sub-assembly-nitride","provider":"Centerfire Systems","version":"1.0","type":"link"}