TargetTalk

Hi, do you know how to determine the grip size for the Walther GSP? I'm not referring to the hand size chart; I want to know whether my grip is the S, M, or L version. Is there any sign on the grip telling that info?

Usually there is a letter stamped in the bottom of the grip.
Older grips didn't always had that.
If your grip doesn't have any stamp, your only bet is to take the hand chart and try to work the size from those measurements.

Hope this helps
rmca

Sometimes they also mark it on top, under the sights.