These .300 Blackout chambered Modern Series Barrels are machined from 4150 Chromoly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp barrel extensions. With a 1:7 twist rate, 5R rifling, and 5/8"x24tpi muzzle.
| LENGTH/ PROFILE |
WEIGHT | GAS SYS. LENGTH |
GAS BLOCK JOURNAL |
| 10.5" DRP | 19oz. |
PISTOL |
.750" |
| 16" DRP | 29oz. | PISTOL | .750" |