The Walther Arms P22 Threaded Barrel Adapter (brand part no. 512105) converts a Walther P22’s factory barrel to the widely used 1/2×28 thread pattern, opening up compatibility with the broad range of .22 LR-rated suppressors and muzzle devices built around that standard thread. It’s a straightforward, purpose-built solution for P22 owners who want suppressor or muzzle device options beyond the pistol’s stock configuration. The adapter installs onto the existing barrel and holds a secure, repeatable thread engagement. It ships as a standalone accessory, separate from any suppressor or pistol.

Key Specifications

• Converts the P22 factory barrel thread to the 1/2×28 pattern, one of the most common rimfire suppressor threads.
• Threaded to 1/2×28, opening up compatibility with the wide range of suppressors and muzzle devices built for that standard.
• An overall length of 5.5 inches covers the full adapter assembly.

Frequently Asked Questions

What does this adapter do? It converts the Walther P22’s factory barrel thread to the widely used 1/2×28 pattern.

Why would I need this adapter? It lets a P22 accept the broad range of 1/2×28-threaded suppressors and muzzle devices.

Does this fit any .22 pistol? It’s built specifically for the Walther P22.

Buy the Walther Arms P22 Threaded Barrel Adapter

Order the P22 Threaded Barrel Adapter from our Lubbock, Texas gun shop for fast, direct shipping. Browse more Class 3 parts in our Class 3 parts and accessories category.