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Out of Stock Item

5.7x28 Complete Upper 16.1” RESOLUTE™ 100 - CMMG

CMMG FIREARMS
2 Reviews
Add Your Review
SKU
54F3F2D
Regular Price:
$899.99
Special Price:
$699.99

Product Details

This is a drop-in caliber conversion for your AR-15, its as easy as fitting this new 5.7 complete upper to your standard lower receiver. CMMG has also included a 40 round magazine for use in your newly configured 5.7x28 AR, making this upper receiver kit fully range-ready as soon as you get your shipment in the mail! Just add some click HERE to the mix and you can start plinking immediately! 

CMMG has designed the upper receiver with a patented radial delayed blowback operating system and includes a full BCG, mil-spec charging handle, A2 compensator, and a 15" M-LOK handguard. These great features and the included 40-round magazine allow for an effortless caliber swap. 

For additional magazines, click HERE!

Technical Specs:

  • Barrel: 16.1” 1:9 twist, medium taper 416SS
  • Muzzle: A2 comp, threaded 1/2-28
  • Material: Forged 7075-T6 AL M4 type upper
  • Rail: CMMG RML15 M-Lok handguard
  • Receiver Coating: Hard coat anodized receiver and handguard
  • Weight: 4lbs 5oz
  • Overall Length: 25.2” 

More Information

Category Gun Parts
Caliber 5.7x28mm
Manufacturer SKU 54F3F2D
UPC 816422029884
Condition New
Manufacturer CMMG
Firearm Fit AR-15
Twist 1:9
Capacity 40
Magazine Capacity 40

Reviews (2)

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5.7x28 Complete Upper 16.1” RESOLUTE™ 100 - CMMG
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Customer Reviews

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Michael Alley
Nov 9, 2021
Verified Buyer
Colt LE6920 now has a mate
The CMMG 16.1 Resolute 100 was a perfect fit to the Colt LE6920 lower. The platform now is capable of 5.56 NATO and 5.7x28. No issues at range day. An excellent product.
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Jack Powell
Jun 7, 2021
Verified Buyer
WOW
Very happy with the unit. Fit right on a AR15 lower had on hand. Functions good, shoots great.
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California Prop 65 Warning  WARNING for California Residents WARNING: Discharging firearms in poorly ventilated areas, cleaning firearms, or handling ammunition may result in exposure to lead and other substances known to the State of California to cause birth defects, reproductive harm, and other serious physical injury. Have adequate ventilation at all times. Wash hands thoroughly after exposure. For more information go to www.p65warnings.ca.gov/.