COPS Supply in the city has a MPX carbine I was looking at. I ended up getting the CZ Evo carbine. 500 bucks cheaper and is straight blow back which I like because they are so much easier to clean. The MPX is piston driven with more parts to clean. I do like the the all metal construction of the MPX better.
I ordered 5 30 round mags from cheaper than dirt for 106 shipped.