I have the M&P 45 with the 4.5" bbl. Just received the Serpa CQC holster for mine. I think you'd be good to go, if that's what you're after.
I'm also interested in the Blade-Tech Revolution, but waiting till after Christmas to make the purchase. BTW, I have an M&P 9mm in layaway and the Blade-Tech is supposed to fit both-we'll see! :-)