Criterion AR match grade barrels are designed for DPMS, Remington, Bushmaster, Midwest Industries and Fulton Armory pattern rifles. These barrels feature an M4 barrel extension with a 5/8 x 24 muzzle thread, and are contoured to accept an .875 diameter gas block. Offered in a mid-weight Hybrid contour, these barrels are manufactured from 416R Stainless Steel or 4140/4150 Chrome Moly Steel (for chrome lined models only). Chambers are finished, but barrels should be headspaced and installed by a qualified gunsmith.
Length Twist Muzzle Gas Block Gas Length Finish
22" 1-8 RH 5/8 x 24 .875 Rifle Stainless