Walther Arms P22 Threaded Barrel Adapter, Black Nitride Stainless Steel, 1/2"-28 TPI

The Walther Arms P22 threaded barrel adapter converts your P22 pistol for suppressor use without permanently altering the gun. Built from black nitride stainless steel, this adapter threads onto your P22 barrel with a standard 1/2"-28 TPI connection—the most common suppressor mounting interface for .22 rimfire pistols. It's a clean way to add hearing protection or a reflex suppressor to a compact, easy-shooting .22 without the cost or permanence of a threaded barrel replacement.

If you already have a .22 suppressor in your collection or plan to pick one up, a quality adapter like this opens up your P22 for quieter, more pleasant shooting at the range or in training. Stainless steel construction resists corrosion, and the black nitride finish keeps it looking sharp while adding hardness to the working surfaces. Thread-on mounting is straightforward—no gunsmithing needed.

The P22 is a natural choice for shooters who want a soft-recoiling, low-cost plinker or practice gun. Pairing it with a threaded barrel adapter means you can suppress it just like a rifle or larger pistol, dropping noise levels and keeping your shooting quieter and more neighbor-friendly.

Key Features

• 1/2"-28 TPI threading—standard suppressor mount for rimfire pistols
• Black nitride stainless steel construction resists corrosion and wear
• Threads directly onto P22 barrel for secure, repeatable seating
• No permanent modification to your pistol

Specifications

Frequently Asked Questions

Will this adapter fit any .22 suppressor?

The 1/2"-28 TPI thread is the standard for rimfire suppressors, so it will accept any suppressor with that mount. Always verify your suppressor's thread pitch before ordering.

Do I need a gunsmith to install it?

No. The adapter threads onto the P22 barrel by hand—no special tools or gunsmithing required. Simply thread it on securely and attach your suppressor.

Will this damage my P22?

No permanent damage. The adapter threads onto the barrel without requiring any modifications to the gun itself. You can remove it anytime and return the pistol to its original configuration.

What is black nitride finish?

Black nitride is a surface hardening process that increases corrosion resistance and durability while providing a professional-looking black appearance. It's commonly used on quality firearm components.