The Mk3 3GR was developed for the heavy metal class 3-Gun shooter, but is just as well suited in the field as it is on the range. The Mk3 3GR features an 18" 416 stainless steel, heavy taper profile, 308 WIN barrel. The Mk3 3GR is equipped with CMMG's SV muzzle brake and RKM15 KeyMod hand guard.
- Upper Receiver Type: A3 Flat-top (LR-308 type)
- Barrel Length: 18"
- Barrel Contour: Heavy
- Barrel Material: 416 Stainless Steel
- Muzzle Thread Pattern: 5/8" - 24 TPI
- Chrome Lined: No
- Barrel Finish: Stainless
- Twist Rate: 1:10"
- Chamber: 308 Winchester
- M4 Feed Ramps: N/A
- Muzzle Device: CMMG SV
- Gas System Length: Rifle Length
- Gas Block Diameter: .936"
- Handguard: CMMG RKM15 KeyMod free float
- Sights: None
- Bolt Carrier Assembly Included: Yes
- Bolt Carrier Type: N/A
Please Note: Installation of AR-15 upper assemblies with certain features including, but not limited to: flash hiders, bayonet lugs, and threaded muzzles may violate state and/or local laws.