CMMG Mk4 5.56X45mm NATO Resolute Upper Group Receiver 16.1in Sniper Grey

CMMG Mk4 5.56X45mm NATO Resolute Upper Group Receiver 16.1in Sniper Grey. 5 this is the shortest 5.56mm upper group CMMG offers. Great for anyone looking to build an ultra-compact AR15 thats lightweight and perfectly sized to go anywhere. This 5.56mm BANSHEE upper group is built on our Mk4 AR15 platform. Specifications for CMMG Mk4 5.56X45mm NATO Banshee Upper Group Receiver: Manufacturer: CMMG Cartridge: 5.56x45mm NATO Barrel Profile: Medium Taper Barrel Twist Rate: 1-16 Threads per Inch: .578x28 Fabric/Material: Billet 6061 T6 Aluminum Gun Rail: M-LOK Magazine Included: No Mount Type: M-LOK Package Contents: CMMG Mk4 5.56X45mm NATO Banshee Upper Group Receiver CMMG 55BC7C3-SG: Mk4 5.56X45mm NATO Resolute Upper Group Receiver 16.1in Sniper Grey