Walther Threaded Barrel Long Adapter P22. CNC Machined from 304 Stainless Steel then Black Nitride TM plated. Adapts your M8x.075 Walther P22 barrel to 1/2x28. Machined flats allow use of a standard 1/2 wrench to tighten allowing a secure fit Fits New Style P22 Barrels Specifications for Walther Threaded P22 Barrel Long Adapter: Manufacturer: Walther Color: Black Finish: Matte Fabric/Material: 304 Stainless Steel Gun Make: Walther Gun Model: Walther P22 Included Accessories: Standard Condition: New Package Contents: Walther Threaded P22 Barrel Long Adapter Thread Protector What firearm models does the manufacturer say Walther Threaded P22 Barrel Long Adapter is compatible with? The manufacturer suggests that Walther Threaded P22 Barrel Long Adapter is compatible with Walther P22Walther 512105: Threaded Barrel-Adapter P22