Let’s face it—building out a reliable rifle can get expensive fast. But just because you're watching your budget doesn’t mean you need to compromise on performance. Enter the MK111 PRO Upper—a purpose-built upper that delivers PWS's legendary long-stroke reliability, modern suppressor tuning, and top-tier features, all without blowing out your wallet.

This isn't just another entry-level upper. It's a value-packed performer, built with the same mindset that’s kept PWS rifles running hard in the field for over a decade. At its core is our long-stroke piston system, inspired by the durability of the AK platform but refined for the AR world. It runs cleaner, cooler, and smoother than traditional direct impingement setups—especially when you throw a suppressor into the mix.

Tailored for Suppressed Shooting, Without the Price Tag

If you're building a suppressed rig on a budget, the MK111 PRO is a smart move. It features a 3-setting adjustable gas system, allowing you to fine-tune your setup based on your can, ammo, and shooting environment. Whether you're chasing softer recoil or trying to keep gas out of your face, the MK111 PRO puts you in control.

Paired with an 11.85” .223 Wylde barrel, this upper delivers solid performance whether you're running .223 Rem or 5.56 NATO. The 1:8 twist rate makes it versatile across a variety of bullet weights—perfect for training, defense, or just fun range days.

Smart Design Where It Matters

While some budget builds feel... well, budget, the MK111 PRO doesn’t cut corners where it counts. You’re still getting:

• A rugged 6061 extruded upper receiver that keeps things lightweight and strong.

• A free-float MLOK handguard, offering solid accessory mounting and good hand ergonomics without bulk.

• A Radian Raptor™ ambidextrous charging handle, because even at this price point, you shouldn’t have to settle for less.

• Our FRC 2-Port Compensator, which not only tames recoil and flash, but also plays nice with several popular suppressor mounts—including Rearden Atlas, Plan B, and our own PWS PUB system.

All of this is finished in our Kodiak Brown anodizing, giving it a distinct look that’s as durable as it is sharp.

Who’s the MK111 PRO Upper For?

• Shooters who want a suppressor-ready platform but don’t need billet receivers or ultra-light race gun features.

• Budget-minded builders who refuse to compromise on reliability and quality.

• New AR owners looking for their first serious upper, or experienced users needing a hard-use backup rig.

Final Thoughts: The Sweet Spot in Suppressed Performance

The MK111 PRO isn’t trying to be flashy. It’s not chasing trends. It’s built to run—and run well—without draining your wallet. It’s the gateway into piston-driven performance, backed by PWS’s reputation and our lifetime warranty.

So if you're building a rifle that’s meant to work hard, shoot smooth, and stay reliable—especially when suppressed—the MK111 PRO Upper is the smart choice.

No fluff. No compromise. Just performance where it matters.