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CMMG AR-15 Resolute 100 Mk4 Upper Receiver Assembly 22 Long Rifle 17″ Barrel M-LOK Handguard



Product Information

Cartridge 22 Long Rifle
Color Armor Black
Finish Cerakote
Material Aluminum
Weight 4 Pound
Barrel Length 17 Inches
Twist 1:16 Inches
Threads 1/2″-28
Barrel Contour Medium
Barrel Finish Black Salt Bath Nitride
Chrome Lined No
Upper Receiver Type A3 Flat-Top
Barrel Material 4140 Chrome Moly Steel
Handguard CMMG EML15 M-LOK
Bolt Carrier Assembly Included Yes
Country of Origin United States of America
Compatible With

Delivery Information

Shipping Weight

4.710 Pounds

Product Overview

CMMG’s Resolute is engineered with purpose for those who refuse to compromise on quality. The Resolute is designed for balance, accuracy and maneuverability. The Resolute 100 offers a billet 6061 T6 upper receiver assembly. Whether you’re looking to build a AR15 for plinking, training, or small-game hunting, this .22 LR RESOLUTE Upper Group fits the bill perfectly. The Mk4 .22 LR upper is designed to work with any standard AR15 lower and CMMG .22 Conversion Magazines.



  • ZEROED AR15 Polymer Dust Cover
  • ZEROED 22LR Ambi Charging Handle
  • ZEROED Muzzle Brake 5.56mm

Made In United States of America


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