Made in the USA by Primary Weapons Systems, the MK111 rifle lineup features fully forged anodized T6 7075 PWS MK111 MOD 2 uppers married to a carbine long-stroke piston system.

For AR 15 pistols, the Primary Weapons Systems MK111 MOD2-M 11.85 inch .223 Wylde Upper Receiver is exactly what you need. IF you're unfamiliar with .223 Wylde, this caliber means the …

The MK111 MOD 2, has become the go-to SBR for many shooters, including many PWS employees. Shooters are now able to run 1 AR for a variety of uses. We've seen the MK111 …

Chambered in 223 Wylde with an incredible 30-round capacity, the PWS MK111 Pro is a versatile and highly maneuverable weapon for CQB engagements. This professional-level AR pistol is …

Oct 29, 2020 · PWS MK111 PRO Specs. Operating System: PWS Long Stroke Piston System, 3 setting Adjustable Gas Regulator; Caliber: .223 Wylde; Barrel Length: 11.85 inches; Gas …

The PWS MK111 MOD 2 rifle, has become the go-to SBR for many shooters, including many Primary Weapons Systems employees. Shooters are now able to run 1 AR for a variety of …

The MK111 MOD 2-M operates on the highly acclaimed PWS Long Stroke Piston System, renowned for its reliability and reduced fouling. The inclusion of a 3-setting Adjustable Gas …

Experience exceptional performance with the PWS MK111 Compound Pistol .223 Wylde - featuring Long Stroke Piston System, adjustable gas regulator & more. Shop now.

The PWS AR-15 MK111 MOD 1-M Long Stroke Gas Piston Upper Receiver Assembly utilizes the PWS Long Stroke Piston System with a 3 setting Adjustable Gas Regulator. MK111 MOD 1-M …

Available as a complete upper or complete firearm (both pistol and rifle configurations). As with all PWS complete upper receivers, they will fit seamlessly to any AR15 lower receiver with no …