CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver

Designed to be a flat shooting round at medium to long ranges, 6.5 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: 5/8×24 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