The MP7 is a German submachine gun made by the company Heckler & Koch. The MP7 was meant to be used as a PDW(personal defense weapon) much like the P90. My Lego version has a working trigger, folding grip, removable magazine, extendable stock, and working RIS rails. I would've made a working charging handle and bolt, but I didn't know where on the gun they were located. I know where they are now, but I would have to remake the whole gun to add them, and I don't feel like doing that. The overall length of the gun is 16 3/4 inches long(1/4 inch too long) and with the stock extended it's 24 3/4 inches(1/4 inch too short). It took me only two days to build. It has two magazines- a 20rd and a 40rd- the 40rd one is is now. This gun is very sturdy, and the grip is really comfortable. Enjoy.