{"product_id":"rosco-manufacturing-bloodline-300-blackout-8-2-hbar-barrel-nitride-4150-cmv","title":"Rosco Manufacturing Bloodline 300 Blackout 8.2\" HBAR Barrel - Nitride 4150 CMV","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eRosco Manufacturing Bloodline\u003c\/span\u003e\u003c\/strong\u003e \u003cstrong\u003e8.2\" HBAR barrel\u003c\/strong\u003e in \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e.300 AAC Blackout\u003c\/span\u003e\u003c\/strong\u003e is purpose-built for short-barrel AR-platform pistol and SBR builds, especially when paired with a suppressor. The Bloodline series pairs modern manufacturing with a heavy-profile contour that resists barrel whip and point-of-impact shift under rapid fire.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThis \u003cstrong\u003e8.20\" barrel\u003c\/strong\u003e is machined from \u003cstrong\u003e4150 CMV steel\u003c\/strong\u003e and finished in a black \u003cstrong\u003enitride\u003c\/strong\u003e treatment for corrosion resistance and long service life. The \u003cstrong\u003e1:7\" twist\u003c\/strong\u003e stabilizes the full range of 300 Blackout projectiles, from heavy subsonic loads to lightweight supersonic rounds, while the \u003cstrong\u003e5\/8x24\u003c\/strong\u003e thread pitch accepts standard 300 Blackout muzzle devices and suppressors. The \u003cstrong\u003epistol-length gas system\u003c\/strong\u003e is tuned specifically for the 8.2\" length.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eDesigned for compact pistol-caliber ARs and suppressed SBR builds, the heavy (HBAR) profile gives this Bloodline barrel added rigidity and heat-sinking mass for sustained fire. Whether you are building a quiet 300 Blackout pistol for home defense or a versatile SBR for the field, the Rosco Bloodline 8.2\" barrel delivers the geometry, durability, and fit to make the most of the cartridge.\u003c\/span\u003e\u003c\/p\u003e","brand":"Rosco Manufacturing","offers":[{"title":"Default Title","offer_id":55818036740418,"sku":"179466","price":145.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_3d1424de-0c22-4143-adb0-a059525223b6.png?v=1786097300","url":"https:\/\/centerfiresystems.com\/products\/rosco-manufacturing-bloodline-300-blackout-8-2-hbar-barrel-nitride-4150-cmv","provider":"Centerfire Systems","version":"1.0","type":"link"}