Rosco Bloodline Sauce Pack Features The Rosco Manufacturing Bloodline Sauce Pack was created after direct requests from builders who wanted a single pre-matched set of key components for their 5.56 NATO carbine or pistol build. At the center of the kit is a 16 inch barrel machined from chrome moly steel with a 1:7 twist rate suited to stabilizing a wide range of 5.56 bullet weights. The barrel wears a Black Nitride finish for corrosion resistance and smooth function under hard use. A 1/2x28 thread pattern at the muzzle leaves the builder free to install their own muzzle brake compensator or suppressor mount. Every part in the Sauce Pack is selected to work together as a complete system rather than a loose collection of parts so builders are not left guessing about compatibility between components. That synchronized design is meant to deliver results straight out of the box cutting down on fitting and troubleshooting during assembly. At 28.97 oz the barrel assembly keeps weight manageable for a balanced carbine build. For builders who want a dependable ready-to-run 5.56 NATO foundation without sourcing each part separately the Bloodline Sauce Pack is a straightforward solution. Rosco Bloodline Sauce Pack Specifications Manufacturer: Rosco Model: Bloodline Sauce Pack Caliber: 5.56 NATO Barrel Length: 16 Barrel Material: Chrome Moly Steel Barrel Finish: Black Nitride Twist Rate: 1:7 Thread Pattern: 1/2x28 Weight: 28.97 oz Available At: GrabAGun