CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver 16.1in Midnight Bronze

CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver 16.1in Midnight Bronze. 5 Grendel offers efficient ballistic performance native to many 6.5mm bullet designs. The upside here is that this RESOLUTE Mk4 Upper Group in 6.5 Grendel is built on the Mk4 platform and works with any standard AR15 lower group. Specifications for CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver: Manufacturer: CMMG Cartridge: 6.5mm Grendel Overall Length: 25 in Barrel Profile: Medium Tapered Gas System Length: Rifle Length Barrel Twist Rate: 1-8 Threads per Inch: 5/8x24 Muzzle Device: CMMG Zeroed Muzzle Brake Fabric/Material: 6061-T6 Aluminum Gas Block Journal Size-Diameter: .750 in Gun Rail: M-LOK Gun Make: CMMG Gun Model: CMMG Mk4 Weight: 4.3 lb Magazine Included: No Mount Type: M-LOK Package Contents: CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver CMMG 64BCF88-MB: Mk4 6.5 Grendel Resolute Upper Group Receiver 16.1in Midnight Bronze