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Overview
CMMG Resolute 100 Upper Group for the MK4 platform in 5.56x45mm is engineered as a complete upper group and ships with the bolt carrier group (BCG) included for a ready-to-install solution.
Key Features
- Complete Upper Group with BCG Included: Ships ready to pair directly with a compatible lower receiver.
- 16.1" 4140 Chrome Moly Barrel with Salt Bath Nitride (SBN) Finish: Corrosion-resistant barrel with 1:7 twist rate.
- CMMG RML15 M-Lok Handguard: Free-float M-Lok design with accessory mounting options.
- Forged 7075-T6 Aluminum Receiver with Hard Coat Anodize: Durable receiver and handguard finish.
- Mid-Length Gas System and A2 Compensator: Promotes smooth, reliable cycling; standard 1/2-28 threaded muzzle.
Specifications
- Brand: CMMG
- MPN: CMM55BC761
- UPC: 816422026562
- Caliber: 5.56x45mm
- Barrel Length: 16.1 in
- Barrel Twist: 1:7
- Barrel Profile: Medium Taper
- Barrel Material: 4140 Chrome Moly (4140CM)
- Barrel Finish: Salt Bath Nitride (SBN)
- Muzzle Device: A2 Comp, threaded 1/2-28
- Gas Port Location: Mid Length
- Receiver: Forged 7075-T6 Aluminum, M4 Type Upper, complete with BCG
- Handguard: CMMG RML15 M-Lok
- Finish: Hard Coat Anodized (receiver and handguard)
- Charging Handle: CMMG Mil-Spec
- Weight: 4 lb 5 oz
- Overall Length: 25.2 in
Specifications
- Manufacturer:
- CMMG
- Category:
- upper-receiver
- Caliber:
- 5.56x45mm NATO
- Platforms:
- AR-15
- Interfaces:
- Muzzle thread: 1/2-28Magpul M-LOK
- Weight:
- 69.5 oz (4.34 lbs)
- Length:
- 25.2"
- UPC:
- 8258473754746
- MPN:
- CMM55BC761
- Required Component:
- Yes
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