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Upper Group | RESOLUTE| Mk4 | 5.56x45mm| 16.1" | AR15 | Ejection Port Side View | Armor Black
Upper Group | RESOLUTE| Mk4 | 5.56x45mm| 16.1" | AR15 | Ejection Port Side View | Charcoal Green
Upper Group | RESOLUTE| Mk4 | 5.56x45mm| 16.1" | AR15 | Ejection Port Side View | Coyote Tan
Upper Group | RESOLUTE| Mk4 | 5.56x45mm| 16.1" | AR15 | Ejection Port Side View | Midnight Bronze
Upper Group | RESOLUTE| Mk4 | 5.56x45mm| 16.1" | AR15 | Ejection Port Side View | Tungsten
CMMG Product #55BC7C3-AB
CMMG Product #55BC7C3-CG
CMMG Product #55BC7C3-CT
CMMG Product #55BC7C3-MB
CMMG Product #55BC7C3-TNG

UPPER GROUP, RESOLUTE, Mk4, 5.56X45MM NATO, 16.1"

PRODUCT #55BC7C3

See Full Specifications
$949.95
Free Shipping over $150.00

Product Restrictions

Expected to ship within 15-30 business days. AR Parts Notice - State/local restrictions may apply in CT, DC, IL, MA, NJ, NY, or WA. Customers must review our Shipping Policy prior to ordering.

WARNING: Cancer and Reproductive Harm | https://www.p65warnings.ca.gov/

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UPPER GROUP, RESOLUTE, Mk4, 5.56X45MM NATO, 16.1"

Top off your next build with this RESOLUTE® Mk4 Upper Group. Chambered in 5.56x45mm, this upper group is a staple for any collection and comes ready to pair with the AR15 lower group of your choice. Available in seven different Cerakote finishes, all CMMG® Upper Groups come complete with bolt carrier group and ZEROED™ accessories including:

ZEROED AR15 Polymer Dust Cover

ZEROED AR15 Ambi Charging Handle

ZEROED Muzzle Brake 5.56mm

 

Lifetime Quality Guarantee

We aim to please, that’s why every CMMG product is backed by our Lifetime Quality Guarantee against material and workmanship defects. Learn More.

 

Specifications

Platform Mk4
Caliber 5.56x45mm
Operating System Direct Impingement
Barrel Length 16.1
Barrel Twist 1:7
Barrel Contour MT
Barrel Material 4140CM, SBN
Muzzle Device CMMG ZEROED Muzzle Brake
Muzzle Thread 1/2 x 28
Gas Port Location Mid
Gas Block 0.750 Non-Adjustable
Upper Receiver Billet 6061 T6 Aluminum
Hand Guard CMMG EML15 M-LOK
Finish Cerakote Standard
Charging Handle CMMG ZEROED Ambi
Weight 4.3 lbs
Length 25"

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