Quote:
Originally Posted by epj
Is the breach face on a 9 and 40 the same? Reason I'm wondering is can you go in the other direction, ie convert a 9mm to 40? I suspect the 9mm breachface is smaller and that this mod isn't possible, but ya never know for sure until you ask.
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I'm almost positive it will not work. Another thing to keep in mind, that I have yet to prove but will one day when I get my hands on a .40 M&P at the range, is the .40 mags will most likely run 9mm.
The round markers will be useless, but I remember back during the AWB days, people would buy Beretta .40 mags for their 9mm guns to squeeze in 12 rounds. Reliability can be iffy on certain magazines, but I believe the M&P .40 mags would run 9mm just fine. And it makes a conversion a little more affordable.
Anyone here that can try this?
Steve