Criterion .308 AR match grade barrels are designed for DPMS, Remington, Bushmaster, and Fulton Armory pattern rifles. These barrels feature an M4 barrel extension and M118 LR match chamber compatible with both 7.62×51 NATO and .308 Win ammunition. Offered in a mid-weight Hybrid contour, these barrels are manufactured from 4150 Chrome Moly Steel.
Chambers are finished, and headspaced with a .308 AR Bolt from Fulton Armoury (included).
Gas lengths are designed to accommodate DPMS type (standard AR-15) gas tubes.
- Weight 2.9 lbs
- Dimensions 20 x 1.5 x 1.5in
- Contour Hybrid
- Barrel Length 20"
- Gas System Length Rifle Length
- Material 4150 CMV
- Barrel Finish Chrome Lined
- Chamber M118 LR (compatible with .308 Win and 7.62 NATO)
- Gas Block Diameter .750
- Muzzle Thread 5/8 x 24
- Twist Rate 1-11
Fulton Armory .308 AR Bolt Assembly
These bolts are precision machined from 9310 steel. The hardened extractor is fabricated from S7 tool steel. Properly formed lug chamfers provide smooth locking & unlocking, help decrease excessive “tilt”. Firing pin holes gauged for minimum size to help eliminate primer “cratering”.