{"product_id":"rosco-manufacturing-bloodline-ar-15-300-blackout-10-5-4150-cmv-barrel-nitride","title":"Rosco Manufacturing Bloodline AR-15 300 Blackout 10.5\" 4150 CMV Barrel - Nitride","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eRosco Manufacturing Bloodline 10.5\" AR-15 barrel\u003c\/strong\u003e\u003c\/span\u003e is a \u003cstrong\u003eheavy-profile\u003c\/strong\u003e replacement barrel chambered in \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003e300 Blackout\u003c\/strong\u003e\u003c\/span\u003e. Its compact configuration is suited to AR pistol and SBR builds, including setups intended for suppressed use.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eBuilt from \u003cstrong\u003e4150 chrome-moly-vanadium steel\u003c\/strong\u003e, this barrel uses a \u003cstrong\u003epistol-length direct-gas system\u003c\/strong\u003e with a \u003cstrong\u003e0.750 in gas-block journal\u003c\/strong\u003e. Rosco sized the gas port for use with both subsonic and supersonic 300 Blackout ammunition in suppressed and unsuppressed configurations.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e10.5 in barrel\u003c\/strong\u003e has a \u003cstrong\u003e1:7 twist\u003c\/strong\u003e, \u003cstrong\u003e5\/8x24 muzzle threads\u003c\/strong\u003e, and an \u003cstrong\u003e11-degree crown\u003c\/strong\u003e. A \u003cstrong\u003eblack salt-bath nitride finish\u003c\/strong\u003e is applied to both the barrel and barrel extension for corrosion resistance. Barrel weight is \u003cstrong\u003e21.4 oz\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e","brand":"Rosco Manufacturing","offers":[{"title":"Default Title","offer_id":54988429558082,"sku":"179456","price":130.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_81297ba9-d06e-43a5-85cb-3b783743e30e.png?v=1784135328","url":"https:\/\/centerfiresystems.com\/products\/rosco-manufacturing-bloodline-ar-15-300-blackout-10-5-4150-cmv-barrel-nitride","provider":"Centerfire Systems","version":"1.0","type":"link"}