Walther P22 PPK/S 22 1/2"-28 Thread Adapter Blued

As far as I'm concerned, this adapter is the only way to go when replacing the factory barrel nut with a silencer adapter. The hex drive is so much better than the factory wrench, and the machining tolerances are spot on. If you need an adapter, don't waste time and money with other ones, this one is the best, I know as I've tried a few!