Description
Rosco .300 Black Out barrels are created by using input from SOCOM end users and some of the original creators of this caliber. Every barrel was designed to optimize the original role for the 300 Blackout; to be suppressor friendly and accurate. It is Roco’s 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 taken into account when they set out to make these.
FEATURES
- Barrel Material – 4150 CMV
- Barrel Caliber – 300 BLK
- Barrel Profile – Heavy
- Twist – 1:7
- 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
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