I'd love to see an M&P 10mm, however the chances of it actually able to
compete with the Glock 20 are slim and none.
The Glocks have turned into the AR15 of pistols...aftermarket is Huge...
not to mention it having been around and has the reliability & recognition...

A new M&P in 10mm would cost at least $650 minimum...
which would doom it before it ever got started...
mag capacity would be the same or lower...if lower it'd really hurt it...
and we'ed all wait until someone torture tested it until it failed...
because 10mm ain 't yer ordinary cartridge...we'ed need to KNOW.
Just can't see it taking off like a reprint of the 3rd Gen 10xx's would...

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Marlin & Calico Specialist