Lior Posted July 30, 2015 Share Posted July 30, 2015 Dear folks, I own a 9mm M&P Pro 5" and wish to ask if a .40S&W barrel and slide combination would run smoothly and reliably on it for competition use (given such variables as the extractor). Any inputs would be welcome - thanks. Link to comment Share on other sites More sharing options...
DougCarden Posted July 30, 2015 Share Posted July 30, 2015 Yes it will. Just change top end and mags. I am not aware of any changes since my armorer class. DougC Link to comment Share on other sites More sharing options...
Rob Tompkins Posted July 30, 2015 Share Posted July 30, 2015 Yes, I have a 9mm Pro and 40cal Pro. One frame is a stock trigger and the other has the APEX FSS and trigger. I mix and match for the best combo depending the game I want to go play. Link to comment Share on other sites More sharing options...
horseman Posted July 30, 2015 Share Posted July 30, 2015 So has there been a change in USPSA rules? I thought it would be technically illegal to shoot 9mm out of a 40 frame. Or is that just Production? Link to comment Share on other sites More sharing options...
Flash74 Posted July 30, 2015 Share Posted July 30, 2015 9 out of a 40 would only be restricted in production. For limited or lim10 it would be fine. The 9 and 40 M&P pistols use the same frame. The tolerances are loose enough on these pistols that switching top ends works well. Link to comment Share on other sites More sharing options...
wgj3 Posted July 30, 2015 Share Posted July 30, 2015 I do this quite a bit also and can verify that it works. Link to comment Share on other sites More sharing options...
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