The original MEC Primer Tray is a bit small and doesn't fit real nice in the area below the reloader. I designed this replacement tray to fit snuggly between the two side supports. This tray will easily hold 400 decapped primers before you need to empty. Unlike the original tray, you don't have to worry about positioning it on the left side to catch the falling primers!
Added Fusion 360 file.
You can print this with ABS, PLA, PETG, or anything you happen to have available that isn't flexible.