Primary Weapons MK111 Pro Upper 223 Wylde 11.85 Inch BBL Complete Upper Receiver Black

Introducing the MK111 PRO Upper from the PWS MK1 PRO Line, featuring the renowned PWS long-stroke piston system tailored specifically for suppressor enthusiasts. This budget-friendly option upholds the exceptional quality and reliability synonymous with PWS for over a decade. Inspired by the AK rifle's dependability, the long-stroke piston system ensures consistent performance, reducing wear on critical components and enhancing the shooting experience with a 3-setting adjustable gas system ideal for suppressor users.

The MK1 PRO line retains PWS's legacy of accuracy and reliability while offering premium features at an accessible price point. Equipped with a free-float MLOK handguard, Radian Raptor charging handle, and an extruded upper receiver with a robust handguard attachment system, the MK111 PRO Upper fits seamlessly into any AR15 lower receiver. This combination of high-end features and custom components, backed by a lifetime guarantee, makes it an outstanding value in the piston-driven operating systems market.

Product Features

• PWS Long Stroke Piston System: Renowned for reliability and reduced fouling, featuring a 3-setting adjustable gas regulator for optimal performance.
• Suppressor Optimized: Enhances suppressor performance by minimizing back pressure, reducing gas blowback, and optimizing gas flow.
• .223 Wylde Chambering: Designed for outstanding accuracy and reliability, accommodating both .223 Remington and 5.56mm NATO.
• Barrel Length: Features an 11.85” barrel with a 1:8 twist rate and a muzzle velocity of 2741 fps.
• Muzzle Device: A2 Flash Hider expertly mitigates muzzle flash for improved shooter visibility.
• Upper Receiver: PWS Proprietary Piston Upper, 6061 extrusion, anodized for durability and strength.
• Handguard: PWS M-Lok™ 11” Handguard offers improved handling and accessory mounting options (1.7” width, 2.25” height).
• Charging Handle: Radian Raptor™ Ambidextrous Charging Handle ensures smooth operation for both left and right-handed shooters