{"product_id":"rosco-manufacturing-bloodline-ar-15-barrel-10-5in-300-blackout-heavy-nitride-1-7-bl-105-hb-300blk-7-p","title":"Rosco Manufacturing Bloodline AR-15 Barrel 10.5in 300 Blackout Heavy Nitride 1:7 BL-105-HB-300BLK-7-P","description":"\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe Rosco Manufacturing Bloodline 10.5\" 300 Blackout barrel is built for compact AR-15 pistol and SBR configurations, especially when paired with a suppressor. Designed as a capable option for short-barreled setups and as a potential replacement for MK18-style platforms originally chambered in 5.56 NATO, this barrel delivers a heavy contour profile with a durable black nitride finish for wear and corrosion resistance. Its pistol-length gas system and 5\/8x24 muzzle threads make it well-suited for modern 300 BLK builds that need reliable function with subsonic and supersonic ammunition. The 10.5\" length also supports setups that benefit from slightly longer handguards to comfortably mount laser aiming devices.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eCompact 10.5\" 300 Blackout AR-15 barrel optimized for pistol\/SBR builds and suppressor use\u003c\/li\u003e\n  \u003cli\u003eHeavy contour profile for improved rigidity and consistent performance\u003c\/li\u003e\n  \u003cli\u003eBlack nitride finish on 4150 Chrome Moly Vanadium steel for durability and corrosion resistance\u003c\/li\u003e\n  \u003cli\u003e1:7 twist rate and pistol-length gas system to support a wide range of 300 BLK loads\u003c\/li\u003e\n  \u003cli\u003eThreaded 5\/8x24 muzzle and .750\" gas block journal for broad compatibility with common components\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\/Series:\u003c\/strong\u003e Bloodline\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e BL-105-HB-300BLK-7-P\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 181969500128\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e 300 Blackout\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Length:\u003c\/strong\u003e 10.5\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Material:\u003c\/strong\u003e 4150 Chrome Moly Vanadium (CMV)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black Nitride\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContour\/Profile:\u003c\/strong\u003e Heavy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwist Rate:\u003c\/strong\u003e 1:7\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGas System Length:\u003c\/strong\u003e Pistol\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGas Block Journal Diameter:\u003c\/strong\u003e .750\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMuzzle Thread Pitch:\u003c\/strong\u003e 5\/8x24\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarrel Crown:\u003c\/strong\u003e 11 Degree\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 21.4 oz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlatform Fit:\u003c\/strong\u003e AR-15\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","brand":"ROSCO MANUFACTURING","offers":[{"title":"Default Title","offer_id":44077147816058,"sku":"FLX-179456","price":151.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1679\/0365\/files\/283696165.png?v=1767640559","url":"https:\/\/tlooutdoors.com\/products\/rosco-manufacturing-bloodline-ar-15-barrel-10-5in-300-blackout-heavy-nitride-1-7-bl-105-hb-300blk-7-p","provider":"TLO Outdoors","version":"1.0","type":"link"}