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Upper Group | RESOLUTE | 5.56x45mm | 16.1" | No BCG or Charging Handle | Armor Black
Upper Group | RESOLUTE | 5.56x45mm | 16.1" | No BCG or Charging Handle | Coyote Tan
Upper Group | RESOLUTE | 5.56x45mm | 16.1" | No BCG or Charging Handle | Midnight Bronze
Upper Group | RESOLUTE | 5.56x45mm | 16.1" | No BCG or Charging Handle | Tungsten
CMMG Product #55BB40B-AB
CMMG Product #55BB40B-CT
CMMG Product #55BB40B-MB
CMMG Product #55BB40B-TNG

UPPER GROUP, RESOLUTE, Mk4, 5.56X45MM NATO, 16.1", No BCG or Charging Handle

PRODUCT #55BB40B

See Full Specifications
$609.95
Free Shipping over $150.00

Lead Time
Expected to ship within 15-30 business days.

AR Parts Notice - State/local restrictions may apply. Customers must review our Shipping & Restrictions 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", No BCG or Charging Handle

Make the quick switch to a 5.56mm carbine with this RESOLUTE® Mk4 Upper Group. This upper group does NOT include BCG or charging handle. Available in a variety of Cerakote finishes.

 

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 A2 Flash Hider
Muzzle Thread 1/2 x 28
Gas Port Location Mid
Gas Block Adjustable .750"
Upper Receiver Billet 6061 T6 Aluminum
Hand Guard CMMG EML15 M-LOK
Finish Cerakote
Charging Handle Not Included
Weight 3.6 lbs
Length 25"

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