point here too...you CAN suppress the Walther PP or PPL in 32 or 380...but you WILL NOT be happy with the level of suppression you get.
the PP/PPK models are blowback action, and since the action is not locked, you will get a LOT of ugly noise, powder, and flash out of the ejection port, so much so that you willwonder why you bothered
it works ok with 22s, but larger than that, get a locked breech action 380 or 9mm to suppress.
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