These 5.56 NATO 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 and 1/2"x28tpi muzzle.
| LENGTH/ PROFILE |
WEIGHT | GAS SYS. LENGTH |
GAS BLOCK JOURNAL |
| 10.5" GOV | 19oz. | CAR |
.750" |
| 11.5" GOV | 20.5oz. |
CAR |
.750" |
| 12.5" GOV | 22oz. | CAR |
.750" |
| 14.5" M4 | 25oz. | CAR |
.750" |
| 14.5" GOV | 25oz. | MID |
.750" |
| 16" M4 | 28oz. | CAR |
.750" |
| 16" GOV | 28oz. | MID |
.750" |
| 18" SPR | 41 | RIFLE |
.750" |