- 416 stainless barrel
- 15" KeyMod handguard
- 1:10 twist
Upgrade your LR-308 with the multipurpose Mk3 Upper Receiver Assembly in 308 Winchester. It's the perfect starting point for a heavy-hitting tactical/overwatch build, and works equally well in the tree stand or at the target range. The Mk3 utilizes an 18″ 416 stainless steel heavy taper barrel, and CMMG’s RKM15 KeyMod handguard which allows you to mount all the popular KeyMod compatible accessories. The 1:10" twist is a great choice for a wide range of bullet weights, from lighter military ball-type loads up to heavier match, target and precision loads. Each Upper Group is covered by CMMG’s lifetime quality guarantee.
Please Note: Installation of AR upper assemblies with certain features including, but not limited to: flash hiders, bayonet lugs, and threaded muzzles may violate state and/or local laws.