M&P9 conversion to .40 cal? - MP-Pistol Forum

M&P9 conversion to .40 cal?

This is a discussion on M&P9 conversion to .40 cal? within the MP Full Size Pistols forums, part of the Smith & Wesson MP Forum category; Is it possible to convert a M&P9 to .40 cal? If so how do I go about doing that....


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Old April 27th, 2017, 07:00 PM   #1
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Question M&P9 conversion to .40 cal?

Is it possible to convert a M&P9 to .40 cal? If so how do I go about doing that.
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Old April 27th, 2017, 07:35 PM   #2
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Welcome to our little corner of the net!

Not possible, sorry.
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Old April 28th, 2017, 06:36 AM   #3
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Quote:
Originally Posted by Tricania12 View Post
Is it possible to convert a M&P9 to .40 cal? If so how do I go about doing that.
The only way to do that is with a 40 S&W slide on your frame.
The breach face on the 9mm slide is to narrow to fit a 40 S&W
round.
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Old May 6th, 2017, 12:41 AM   #4
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that's why you buy a 40, so you can convert it to 9mm or 357Sig.

as was said you have to upgrade the whole slide and barrel and mags to be able to convert a 9 to a 40.
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Old May 6th, 2017, 05:29 AM   #5
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Just but 2 guns a 9 and a 40.
Cost is not much more.
Safety/reliability not possibly compromised.
OR
Pick one caliber and be happy.
For me its 40 or 45 in SA gun.
Personal choice I have heard and read all the "arguments" and I am not a 9mm fan.


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Old June 6th, 2017, 06:33 AM   #6
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Only way to do it...

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