Does anyone own an M&P .40?
I'm wondering if the magazine 'fits' in an M&P9 and also how many 9mm bullets you can fit in the .40 magazine.
From what I understand, if you bend the feed ramps a bit it will function fine with 9mm ammo.
Thanks
I didn't ask for legal advice.
[Maybe you shouldn't ask questions here because in many cases you won't like the answer.
If you want the correct answer than call the CFC and ask their opinion..[
why? its a perfectly legal question. there is intent in this case. and FWIW, my friends glock .40 mags hold more 9mm's than my glock 9mm mags. its 100% legal, i just dont see the point in using them cuz 10 rounds is alright with me (im a 1911 guy at heart)
as for the OP, i have an MP 45. so I can't help you there.
You are quoting the wrong guy. I never used the words LEGAL or INTENT, the other guy did............
Either way it kinda seems like a dumb idea to bend and modify a mag to make it work where it's not designed to. You are only asking for malfunctions and people often forget that a firearm is a bomb in your hands so why mess around.
Does anyone own an M&P .40?
I'm wondering if the magazine 'fits' in an M&P9 and also how many 9mm bullets you can fit in the .40 magazine.
From what I understand, if you bend the feed ramps a bit it will function fine with 9mm ammo.
Thanks
Good info on the .40 to 9mm. Is it possible to go from 9mm to .40 with
the M+P if you could purchase the right/different barrel?
I tried using a 40 cal mag in my 9 Pro and it turned it into a jam-o-matic norinco. Don't even bother.




























