CMMG Mk4 4.6X30mm Banshee Upper Group Receiver 8in Midnight Bronze

CMMG Mk4 4.6X30mm Banshee Upper Group Receiver 8in Midnight Bronze. 6x30mm firearm to the U.S. civilian market continuing a tradition of innovation shooters everywhere can now build a light recoiling flat shooting PDW (personal defense weapon) like no other. Designed to work with any standard AR15 lower receiver and our 4.6x30mm magazines. Specifications for CMMG Mk4 4.6X30mm Banshee Upper Group Receiver: Manufacturer: CMMG Overall Length: 16.5 in Barrel Length: 8 in Barrel Profile: Medium Tapered Muzzle Device: CMMG Zeroed Linear Compensator Fabric/Material: 6061-T6 Aluminum Gas Block Journal Size-Diameter: .750 in Gun Rail: M-LOK Gun Make: CMMG Gun Model: CMMG Mk4 Weight: 3.2 lb Magazine Included: No Mount Type: M-LOK Threads per Inch: 1/2×28 Package Contents: CMMG Mk4 4.6X30mm Banshee Upper Group Receiver What firearm models does the manufacturer say CMMG Mk4 4.6X30mm Banshee Upper Group Receiver is compatible with? The manufacturer says that CMMG Mk4 4.6X30mm Banshee Upper Group Receiver is compatible with CMMG Mk4CMMG 46B965A-MB: Mk4 4.6X30mm Banshee Upper Group Receiver 8in Midnight Bronze