CCI Standard 50 round ammo box

thingiverse

I prefer having cut outs on the side if I want to pull the trays out. I also made 2 different covers if you want to toss the cardboard after you open a box. One of them you can cut the cover flap off to label the box and the other is plain. The slots in the top let you see how much ammo you have left as well. Depending on the print settings, you might have to sand down the sides for it to fit. The finer the resolution the looser the fit. At 0.3mm it's a snug fit and 0.2 it's a loose fit.