I replied to your PM.
Early 9 full size barrels had lockup issues. Easy to identify if you might have one, as it would have no dimples on the bottom of the barrel. Having 'no dimple' barrels doesn't mean it will have issues, just that it COULD have issues.
From https://www.indianagunowners.com/forums/handguns/320663-m-p9-fs-bad-internet-makes-seem.html
I've been happy with all of my M&P's, including the full size, despite it's issue. I won't be bullseye shooting with it, but it's plenty accurate enough for center mass hits.
Early 9 full size barrels had lockup issues. Easy to identify if you might have one, as it would have no dimples on the bottom of the barrel. Having 'no dimple' barrels doesn't mean it will have issues, just that it COULD have issues.
From https://www.indianagunowners.com/forums/handguns/320663-m-p9-fs-bad-internet-makes-seem.html
FYI, info on changes: Articles- M&P PRODUCTION UPDATES: Slide stops,barrels,sear
Info on barrel identity & changes: Pic of the Day: New Production M&P Barrel | Modern Service Weapons
I've been happy with all of my M&P's, including the full size, despite it's issue. I won't be bullseye shooting with it, but it's plenty accurate enough for center mass hits.
Robby if you would please I have a question for you concerning your M&P accuracy issues. I am a new owner of a used but in excellent condition 4.25" M&P Pro 9mm and did you ever determine the cause of your two M&P's accuracy issues and also have you found any evidence that would lead you to believe it is a common problem. If you are having accuracy issues with M&Ps in to different calibers I would think this could indicate your accuracy problem may not be a isolated incident. I mean what are the odds you could buy a gun in two different calibers and both have accuracy issues? One would have to think they are quite high unless its more widely spread.
I ask because its going to be some time before I achieve the level of ability before I can honestly evaluate my M&P's accuracy or (I certainly hope not) lack there of at 25 yards. Right now I'm having to work to keep my groups at 3" or less at 15 yards, haven't even tried 25. Speaking of which what size groups were you getting at both 15 and 25 yards with both your M&Ps, if you don't mind sharing. Thanks,
Arthur.
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