AR-15 – RESOLUTE Mk4 Complete Upper – 16.1 Inch 6mm ARC – Armor Black
PLEASE DOUBLE CHECK DETAILS AND FITMENT BEFORE PURCHASE.
The CMMG RESOLUTE Mk4 upper brings 6mm ARC capability to a standard AR-15-pattern lower with the bolt carrier group, charging handle, handguard, and muzzle device already assembled.
Fitment
- Designed for standard AR-15-pattern lower receivers.
- Chambered for 6mm ARC; use the correct 6mm ARC magazine and ammunition.
What It Does
- Direct-impingement operating system.
- CMMG EML15 M-LOK handguard supports common accessories.
- ZEROED ambidextrous charging handle and muzzle brake are included.
Specs
- Barrel: 16.1-inch 416 stainless steel, 1:7.5 twist
- Gas system: Rifle length
- Muzzle thread: 5/8x24
- Receiver: Billet 6061-T6 aluminum
- Finish: Armor Black Cerakote
- Approximate weight: 4.3 lb
What’s Included
- Complete upper group
- Bolt carrier group
- ZEROED ambidextrous charging handle
- ZEROED muzzle brake and polymer dust cover
Verify Before You Buy
- Confirm your lower, magazine, ammunition, and local restrictions before ordering.
- Have headspace, assembly, and safe function verified before live fire.
Disclaimers
⚠ Trademark & Compatibility Disclaimer
IronKells Armory LLC is not affiliated with, endorsed by, or sponsored by any manufacturer mentioned. All trademarks are the property of their respective owners and are used only to identify compatibility or fitment.
⚠ Install & Compatibility Disclaimer
Installation should be performed by a qualified armorer or gunsmith. Improper installation, modification, or use may affect firearm safety and reliability. Buyer is responsible for verifying compatibility, performing proper function testing, and ensuring safe operation.
