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Simon F. asked 2 years ago:
2 answers
Hi Simon and welcome. SD = Suppressed Ready. https://www.all4shooters.com/en/shooting/pistols/test-walther-pdp-full-size-pro-sd-and-compact-pro-sd-in-9-mm-luger/#:~:text=Now%20the%20German%20manufacturer%20rounds,is%20also%20available%20for%20retrofitting.
James G.
2 years ago
threaded The SD stands for Shalldämpfer, the German word for silencer
Randy I.
2 years ago
