+1-800-504-5897 Help Center Check Order Status
About Us Policies Reviews How To
FREE SHIPPING & FREE RETURNS*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

  • Entire Store
  • ...
  • Apparel & Footwear
  • Astronomy
  • Everything Else
  • Eyewear
  • Hunting Gear
  • Lab Equipment
  • Military Gear
  • Outdoor Gear
  • Photography Equipment
  • Police, EMS & Fire
  • Shooting
  • Sport Optics
  • Sports & Hobbies
TIP
Shopping Cart

Tightest upper i have ever seen - CMMG Mk4/AR15 Upper Receiver Assembly w/Forward Assist

by G3 Dimitri, Verified Owner from TX, United States Written on April 19, 2025
Review for CMMG Mk4/AR15 Upper Receiver Assembly w/Forward Assist
CMMG Mk4/AR15 Upper Receiver Assembly w/Forward Assist
CMMG Mk4/AR15 Upper Receiver Assembly w/Forward Assist
As Low As $131.39 Save Up to 23%
View Product
Write a Review View All Reviews
Compare (0)
1 item has been added
Add at least two items to compare

G3 Dimitri's Review of CMMG Mk4/AR15 Upper Receiver Assembly w/Forward Assist

Absolutely shocked about how nice this thing is, crazy tight tolerances. Cerekote had zero flaws and feed ramps were machined perfectly. Will grab more for future builds.
Would Recommend: Yes
Was it helpful to you? Yes | No
Share