I have bought several that were oversized for a Beretta 391, Beretta A400, as my big gripe with the factory stocks was the grip shape and radius. It seems like I was always tinkering with it, and I never thought it was perfect. I only ever had one finished and checkered professionally. Although, I shot that stock very well, accumulating 46 Master class punches from registered NSCA tournaments, I probably would have been better served by just getting professionally fitted at Wenig. Incidentally, I ended up recently buying a Zoli Z sport, and I think that grip is perfect from the factory.