This is a remix of Nick14's handle mixed with a little of miko remix adding alignment posts. I also modified it for M5 bolts and made the c-bore floor a little thicker. I then added some inserts to make it pop and match some of the other mods I made to the Mini.
The 2 middle inserts can bow in and bind a bit as reported by others as well. I just deburred the corners with an knife till they fit but HackMonkey printed at 98% and worked for him but I have not tested.
The author remixed this model.