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Questions & Answers
Does this include bolt carrier Expert Answer

Yes, the CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver will include the Bolt Carrier Group as well as an ambidextrous charging handle.

by Ethan, Gear Expert, January 16, 2023
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6 Models Available
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Product Info for 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.image

WARNING: California`s Proposition 65

Specifications for CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver:

Manufacturer: CMMG
Caliber: 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 Mk4 6.5 Grendel Resolute Upper Group Receiver Orderable Models

List of Orderable Models

CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver, 16.1in, Tungsten, 64BCF88-TNG , MPN: 64BCF88-TNG , UPC: 810097504790 , Code: 2CM-URC-CP50-64BCF88-TNG
CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver, 16.1in, Midnight Bronze, 64BCF88-MB , MPN: 64BCF88-MB , UPC: 810097504769 , Code: 2CM-URC-CP50-64BCF88-MB
CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver, 16.1in, Charcoal Green, 64BCF88-CG , MPN: 64BCF88-CG , UPC: 810097504745 , Code: 2CM-URC-CP50-64BCF88-CG
CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver, 16.1in, Coyote Tan, 64BCF88-CT , MPN: 64BCF88-CT , UPC: 810097504752 , Code: 2CM-URC-CP50-64BCF88-CT
CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver, 16.1in, Titanium, 64BCF88-TI , MPN: 64BCF88-TI , UPC: 810097504783 , Code: 2CM-URC-CP50-64BCF88-TI
CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver, 16.1in, Sniper Grey, 64BCF88-SG , MPN: 64BCF88-SG , UPC: 810097504776 , Code: 2CM-URC-CP50-64BCF88-SG
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