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



CMMG AR-15 Resolute 100 Mk4 Upper Receiver For Sale

CMMG AR-15 Resolute 100 Mk4 Upper Receiver is a high-quality semi-auto rifle that is accessorized to provide optimum performance in a wide range of shooting situations. But the Resolute 100 Mk4 utilizes a 16.1″ medium tapered, Cmmg upper 308 steel barrel, solidified inside and out with a salt bath nitride finish.

CMMG’s Resolute is engineered with a 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 an 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.

What is Cmmg resolute 350?

The Cmmg resolute 350 Semi-Auto Rifle is a precision-built AR-15 platform capable of shot-after-shot accuracy. Complete with a ZEROED stock, pistol grip, ambidextrous safety, and extended magazine catch, the Resolute is modded out to put in the work.

What is a Cmmg resolute 300 9mm?

The CMG Resolute 300 9mm is a premium Semi-Auto Rifle that has been customized to deliver top performance in various shooting circumstances. A 16″ medium tapered 4140 steel barrel with a salt bath nitride finish, and internal hardening is used in the MK4 T.

Is Cmmg banshee handguard a good AR brand?

CMMG Uppers & Lowers

In addition, the Cmmg banshee handguard produces some excellent uppers and lowers in various calibers to complete rifles. While many of these were less cheap than I expected, they are still decently high-quality and well worth their price tags.

Are Cmmg upper 308 any good?

All of the advantages of the AR 15 were on display with the Cmmg upper 308: quick handling, minimal recoil, rapid-fire hits on target, and dependability. The polymer handguard on the CMMG was enough for most firing; the AR-15 does not kick much. Our shooters reported that the BRC handled well at close range as well.


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

Made In the United States of America

Specifications – CMMG

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


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