Rainier Arms Mountain MOD2 5.56 NATO Barrel 12.5in 1/2x28 Mid Len Black Small RAB-CMV-556-125-M-HF-BLK. We have brought back our Mountain Series of barrels for those of you who want the accuracy you expect from Rainier Arms in a nearly...
Rainier Arms Mountain MOD2 5.56 NATO Barrel 12.5in 1/2x28 Mid Len Black Small RAB-CMV-556-125-M-HF-BLK. We have brought back our Mountain Series of barrels for those of you who want the accuracy you expect from Rainier Arms in a nearly...