CMMG Inc Barrel Sub-Assembly Medium Taper 22LR 4.5in 4140CM 22D5B0F. CMMG machined these Rifle Barrels from 4140 steel and added a Salt Bath Nitride coating that enhanced their durability strength and resistance to corrosive elements and abrasion....
CMMG Inc Barrel Sub-Assembly Medium Taper 22LR 4.5in 4140CM 22D5B0F. CMMG machined these Rifle Barrels from 4140 steel and added a Salt Bath Nitride coating that enhanced their durability strength and resistance to corrosive elements and abrasion....