I put a CRS (Combat Rifle Scope) 1-4 power on my S&W M&P and I just love it.
Out of all the different optics my friends and family have on their AR's from Eotech's, Red dots, Buris Prism's and other scopes they all like shooting my setup best and ranges from 50-300yrd.
I mounted a Primary Arms Green dot on top of it for close up shots and the combo works great.