ROSCO-7.5" 300 Blackout Bloodline Barrel

This Rosco 7.5” 300 Blackout Bloodline Barrel was designed for SBR and Pistol use in conjunction with suppressors. This is the shortest that we will go to allow you the flexibility of a shorter Personal Defense Weapon (PDW) without sacrificing performance or ballistics. ALL NFA RULES APPLY!

Our Rosco 300 Blackout barrels were created by using input from SOCOM end users and some of the original creators of the 300 Blackout caliber. Every barrel was designed to optimize the original role for this caliber; to be perform suppressed and be accurate. It is our goal to get you the performance that you seek out of these AR-15 barrels when running sub-sonic ammo or supersonic ammo (depending on barrel length). Twist rates, gas port diameters, and lengths have all been considered when we set out to make these. Let’s just say that we don’t like leaving things to chance.

Barrel Length 7.5″

Barrel Weight 17.23 Oz

Barrel Material 4150 CMV

Barrel Caliber 300 BLK

Barrel Profile Heavy

Twist 1/5

Barrel Thread 5/8 x 24

Gas Block Size .750

Gas System Length Pistol

Barrel Crown 11 Degree

Barrel Finish Nitride

Barrel Extension Finish Nitride