Nothing wrong with that plastic magwell, its cheap, it keeps the cost down for CZ but it plain works as designed. But damn that factory magazine release is too damn short. I have DIP setups on both my CZ's. I had to remove a little bit of material for it to work in the new MDT ACC 455 chassis instead of cutting up the chassis. MDT is now modifing the chassis to work with DIP magwell out of the box.lol...I did. The factory mag release is a chintzy plastic (as is the magwell) The DIP is alum.