Rosco Bloodline Sauce Pack Features The Rosco Manufacturing Bloodline Sauce Pack was created after direct customer requests for a hand-picked set of key components that would deliver real performance at a combined price point rather than a loose grouping of mismatched parts. At the heart of the kit is an 8.2 inch chrome moly steel barrel chambered in .300 AAC Blackout finished in Black Nitride for added corrosion resistance and smoother cycling. A 1 in 7 inch twist rate stabilizes the heavier bullet weights that .300 Blackout shooters typically run from subsonic loads to faster supersonic rounds. The barrel s 5/8x24 threaded muzzle accepts a suppressor or muzzle device directly giving builders flexibility for both home defense and suppressed range use. Every component in the Sauce Pack bundle is designed to synchronize with the others creating an uninterrupted system rather than a collection of parts that merely fit together. This approach saves builders the time and expense of researching compatibility between barrels bolt carrier groups and other internals from separate manufacturers. At 17.49 ounces the barrel keeps the overall package reasonably light for a pistol-length or short-barreled build. For anyone assembling a .300 Blackout carbine or pistol who wants a proven matched set of components the Rosco Bloodline Sauce Pack is available for sale at GrabAGun. Rosco Bloodline Sauce Pack Specifications Manufacturer: Rosco Model: Bloodline Sauce Pack Type: Parts Kit Caliber: .300 AAC Blackout Barrel Material: Chrome Moly Steel Barrel Finish: Black Nitride Barrel Length: 8.2 Twist Rate: 1:7 Thread Pattern: 5/8x24 Weight: 1.09 lbs Available At: GrabAGun