Rosco Manufacturing Bloodline Heavy Barrel 300BLK 16″ Black Nitride Finish 1:8 Twist 5/8×24 4150 CMV

The Rosco 300 Blackout barrels are the result of collaboration with SOCOM end users and the original creators of the 300 Blackout caliber. These barrels are meticulously designed to excel in their original role: being suppressor-friendly and highly accurate. They’ve carefully considered twist rates, gas port diameters, and lengths to ensure optimal performance, whether you’re using sub-sonic or supersonic ammo.