{"product_id":"rosco-manufacturing-bloodline-14-5-m4-5-56-nato-nitride-4150-cmv-carbine-barrel-bl-145-m4-556-7-c","title":"Rosco Manufacturing Bloodline 14.5\" M4 5.56 NATO Nitride 4150 CMV Carbine Barrel BL-145-M4-556-7-C","description":"Product Description\n\u003cp\u003eThe Rosco Manufacturing Bloodline 14.5\" M4 5.56 NATO Barrel represents the next evolutionary step in purpose-built AR-15 carbine barrels. Engineered specifically around the M4 platform, this barrel is crafted from premium 4150 Chrome Moly Vanadium (CMV) steel and finished with a durable Nitride treatment for enhanced corrosion resistance and longevity. With an M4 barrel profile, carbine-length gas system, and a 1 in 7\" twist rate optimized for 5.56 NATO ammunition, this barrel is perfectly suited for your next patrol or duty carbine build. The 1\/2x28 threaded muzzle and precision 11-degree crown ensure muzzle device compatibility and consistent accuracy shot after shot. Note: ALL NFA RULES APPLY.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePremium 4150 CMV Steel Construction:\u003c\/strong\u003e Chrome Moly Vanadium steel delivers exceptional strength, heat resistance, and durability for demanding use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNitride Finish Inside and Out:\u003c\/strong\u003e Full Nitride treatment on both the barrel and barrel extension provides superior corrosion resistance and a hard, low-friction surface.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eM4 Profile with Carbine Gas System:\u003c\/strong\u003e Purpose-built for the M4 platform with a carbine-length gas system for reliable cycling in compact builds.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1 in 7\" Twist Rate:\u003c\/strong\u003e Optimized for stabilizing standard and heavier 5.56 NATO projectiles, delivering consistent and accurate performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1\/2x28 Threaded Muzzle with 11-Degree Crown:\u003c\/strong\u003e Industry-standard threading for broad muzzle device compatibility paired with a precision crown for accuracy.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e ROSCO MANUFACTURING\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Bloodline\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e 5.56 NATO \/ .223 REM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Length:\u003c\/strong\u003e 14.5\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Profile:\u003c\/strong\u003e M4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Material:\u003c\/strong\u003e 4150 CMV\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Finish:\u003c\/strong\u003e Nitride\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Extension Finish:\u003c\/strong\u003e Nitride\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwist Rate:\u003c\/strong\u003e 1 in 7\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Pattern:\u003c\/strong\u003e 1\/2 x 28\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGas System Length:\u003c\/strong\u003e Carbine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGas Block Size:\u003c\/strong\u003e .750\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Crown:\u003c\/strong\u003e 11 Degree\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Weight:\u003c\/strong\u003e 26.34 oz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e M4 Carbine Platform\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 181969500043\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e BL-145-M4-556-7-C\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eDisclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product's manufacturer.\u003c\/em\u003e\u003c\/p\u003e\n]]\u0026gt;","brand":"ROSCO MANUFACTURING","offers":[{"title":"Default Title","offer_id":44199655440506,"sku":"FLX-179461","price":163.98,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1679\/0365\/files\/308989133.png?v=1788365582","url":"https:\/\/tlooutdoors.com\/products\/rosco-manufacturing-bloodline-14-5-m4-5-56-nato-nitride-4150-cmv-carbine-barrel-bl-145-m4-556-7-c","provider":"TLO Outdoors","version":"1.0","type":"link"}