+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

Reviews & Ratings for Matador Arms MAT-9 AR-9 9mm 7.825in Roller Delayed Upper Receiver — 1 review

(1 review)
Matador Arms MAT-9 AR-9 9mm 7.825in Roller Delayed Upper Receiver
Matador Arms MAT-9 AR-9 9mm 7.825in Roller Delayed Upper Receiver
$599.00 $575.00 Save $24.00
View Product
Write a Review
Compare (0)
1 item has been added
Add at least two items to compare

poor fitment

by NorthernHodag, Verified Owner from WI, United States Written on July 15, 2026
The fit took filing of some casting/machining marks to get the upper to pin to my lower. Other than that it looks good. After almost 8 months of waiting i just made it fit.
Would recommend: Yes
1 of 3 found the following review helpful.
Was it helpful to you? Yes | No
Share
Last updated 2026-07-16 UTC.