This 16" 22 ARC barrel is machined from 416 Stainless Steel with a QPQ finish. Their Premium Series Barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension.
Specifications:
- Length - 18";Material - Hardened 416R Stainless Steel"
- Profile - SPR
- Finish - QPQ Corrosion Resistant
- Twist Rate - 1:7";Gas System Length - Rifle"
- Gas Block Journal - .750";Muzzle - 1/2x28 Threaded"