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.

Shopping Cart
Questions & Answers
Does it come with a charging handle?

It comes with a radian charging handle.

by flipo sangria, Verified Owner, May 7, 2021
223 Wylde means? 223 and 5.56?

Barrel can shoot .223 and 5.56 ammo.
The .223 Wylde chamber is tighter tolerance like .223 but can handle 5.56 NATO. Generally 223 Wylde barrel can hold better chamber pressure than standard 5.56 chambered barrel so you get improved bullet velocity and accuracy compared to 5.56 barrel.

by panda, Verified Owner, June 20, 2021
Customer Reviews
Helpful Positive Review
Dependable and rugged by Neil, November 12, 2021
I beat on my stuff. I was the kids that left his new bike outside in the rain and had a flat tire weekly from skid outs. If I can count on it to survive my use I throw it away. The MK111 pro upper is one of my favorite go to units. If you like shooti...
Read More...
2/2 found this helpful
Helpful Positive Review
PWS quality for a great price by Wisco Guy, Verified Owner, December 12, 2021
This PWS upper is everything I expected and more considering it is the lowest price entry for PWS pistol/SBR uppers. The fit and finish is superb and matches well with PWS lowers. More importantly, the long-stroke piston system runs clean and reliabl...
Read More...
4/4 found this helpful
Read All 2 Reviews
Caliber:
.223 Wylde
Barrel Length:
11.85 in
Gas System Length:
Carbine Length
Barrel Twist Rate:
1-8
Handguard Type:
Free-Float
Muzzle Device:
A2 Flash Hider
Finish:
Matte
Color:
Black
Condition:
New
Handguard Length:
11 in
Handguard Style:
Thin Rail
Gun Rail:
M-LOK

Code: 2D5-UFH-RG36D-PM111UA01-1F

MPN: PM111UA01-1F

UPC: 811154030948

Product No Longer Available

Product Info for Primary Weapons Systems MK111 Pro 11.85in Upper Receiver

MK111 PRO Upper, 11.85in Barrel, .223 Wylde, 3-Setting Adjustable Gas System, A2 Flash Hiderimage

Package Contents:

  • Primary Weapons Systems MK111 Pro 11.85in Upper Receiver

Related Products to Primary Weapons Systems MK111 Pro 11.85in Upper Receiver

Primary Weapons Systems MK111 Pro 11.85in Upper Receiver Unavailable & Discontinued Models

List of Unorderable Models

  • Primary Weapons Systems MK111 Pro Upper Receiver, 11.85in, Black, PM111UA01-1F , MPN: PM111UA01-1F , UPC: 811154030948 , Code: 2D5-UFH-RG36D-PM111UA01-1F
  • DEMO, Primary Weapons Systems MK111 Pro Upper Receiver, 11.85in, Black, 19-PM111UA0B , MPN: 19-PM111UA0B-DEMO , Code: 2D5-UFH-RG36D-19-PM111UA0B-DEMO
Compare (0)