This 5.56 chambered 18 inch Performance Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish. Our Performance Series barrels feature a FailZero Nickel Boron Coated Extended M4 Feed Ramp Extension.
This barrel features a longer .750” profile dimension necessary for proper installation of the OPS Inc 12th model collar and suppressor.
| Length | 18" |
|---|---|
| Material | 4150 Chrome Moly Vanadium |
| Profile | SPR |
| Finish | QPQ Corrosion Resistant |
| Gas System Length | Rifle |
| Gas Block Journal | .750" |
| Twist Rate | 1:7 inches |
| Muzzle | 1/2x28 Threaded |
| Weight | 41oz |
| Other Info | HP and MPI Tested |
| Product Video |
