Picked up my gun yesterday, all is perfect except I found the top rail is out of spec!! I tried to install my PA micro dot when I got home, and the rail is too wide for it to set down on, so any of you dealers with these in stock, you might want to try to fit a dot on your guns before you sell them. I will be sending this back for a new top cover, too bad because it is straight as an arrow, perfect otherwise. They do use retainer plates to hold the axis pins in, and they could stand to be .010"-.016" thicker for a better fit. I swapped in a thicker plate I had to hold the trigger pin in tighter. I can see why people say the hole is too big, when the pin backs out .010", it does move!