I have question I have a mp 15 sport 2 on layaway but want to pick up a couple mags, does anyone know if the pmag 30 round at/m4 gen 3 will fit the m&p 15 sport 2,hoping so I jumped the gun so to speak and bought 2 today Thanks for the info

You shouldn't have any issue with any Magpul parts, mags included. I run 30-round gen 2 pmags without the window as these can be found for great prices, they seat perfectly and I've never had any issues.

Yes, PMAGs fit the Sport, in fact the rifle comes with one in the box.

came with my Sport 2 brand new in the box.. Been tested already works great..

The Sport II is an AR-15... standard AR-15 parts will fit with few exceptions. Any magazine made for the AR-15 platform will work with the Sport II.

Have you ever owned an AR-15 before? Or, even a firearm? If not, you should take a class or two.