I made my own mag well support piece that was bent to 2.5° versus the original that were been 90 or straight. By doing that it follows the back of the mag keeps it tighter and it from rocking back-and-forth during firing. And if I remember correctly, I also had to change the front shape of the sheet metal on the front of the.Mag well. The trick is make sure when you’re Building a Mp44 that the stops on the mag are parallel with the Trunnion (the rounds will be pointed slightly up and towards the barrel ) by doing that you really don’t even need to put the ramp in the barrel for the rounds to chamber. I still did anyways, but it would feed without it with no problems