Rosco Manufacturing Bloodline Sauce Pack AR-15 300 Blackout 8.2" Barrel w/ BCG & Gas System

The Rosco Manufacturing Bloodline Sauce Pack bundles a complete upper-build recipe for AR-15 builders running 300 Blackout. At the core of the kit is a Bloodline 8.2" barrel with a 5/8x24 thread pattern ready for a suppressor or muzzle device of your choice.

Paired with the barrel is Rosco's matched 5.56 / 300 BLK Bolt Carrier Group. The BCG is M16-spec, full-auto rated, magnetic particle inspected, and features an upgraded extractor with a properly staked gas key, so it reliably cycles both 5.56 NATO and 300 BLK duty loads. A nitride gas block and pistol-length gas tube round out the gas system, giving you a turnkey recipe that drops onto any standard AR-15 upper receiver.

Whether you are assembling a compact 300 BLK pistol, SBR, or short-barrel rifle, the Bloodline Sauce Pack delivers the barrel, BCG, and gas system components together so you can build with confidence. Backed by Rosco Manufacturing's reputation for hard-use duty components, this bundle takes the guesswork out of sourcing a matched 300 Blackout upper.