CMMG Mk4 Resolute Upper Receiver Group 6mm ARC 16.1in Armor Black. Chambered this upper group is a staple for any collection and comes ready to pair with the AR15 lower group of your choice. Specifications for CMMG Mk4 Resolute Upper Receiver Group: Manufacturer: CMMG Barrel Length: 16.1 in Muzzle Device: CMMG Zeroed Muzzle Brake Color: Armor Black Fabric/Material: Billet 6061 T6 Aluminum Gas Block Journal Size-Diameter: .750 in Gun Rail: M-LOK Gun Type: Rifle Gun Make: CMMG Gun Model: CMMG Mk4 Condition: New Magazine Included: No Package Contents: CMMG Mk4 Resolute Upper Receiver Group What firearm models does the manufacturer say CMMG Mk4 Resolute Upper Receiver Group is compatible with? The manufacturer suggests that CMMG Mk4 Resolute Upper Receiver Group is compatible with CMMG Mk4CMMG 60B1091-AB: Mk4 Resolute Upper Receiver Group 6mm ARC 16.1in Armor Black
CMMG Mk4 5.7X28mm Resolute Upper Group Receiver 16.1in Midnight Bronze Original price was: $1,049.95.$909.99Current price is: $909.99. 
CMMG Banshee Upper Receiver Group 5.7x28mm 8in Armor Black Original price was: $974.95.$829.99Current price is: $829.99. CMMG Mk4 Resolute Upper Receiver Group 6mm ARC 16.1in Armor Black
Original price was: $949.95.$799.99Current price is: $799.99.
