I noticed that in another message "el_rojo" stated that he could only get 9 rounds in after the modification. I too had this problem, what I did was cut a thread or two off the the top of each screw with a dremel to "flatten" the screw and allow the 10 rounds to properly fit and allow the bolt to move forward and chamber round 1 of 10 smoothly. I made sure I didnt cut too much at a time, as I wanted the screws to still grab as much of the reciever as possible. Hopefully I can go out to the range tomorrow and find out if the mod, worked and load 10rnds. I noticed that in the picture I neglected to reinsert the bottom plate on the magazine, I do have it though and it looks even nicer in place. now to figure out what kinds of things to store inside it.