A speed loader for CYMA CM030 magazines. Integrated lock to keep BB's from feeding until you are ready to load the magazine. One load of BB's in the chamber loads one magazine with a couple of BB's or so to spare. I find it easier to load if you don't fill it to the brim.
Added a Loader with no lid and a separate Lid with no latch. N.B. I have not tried to print this new configuration.
I printed this up side down (the lid towards the build plate), using tree support in CURA and 0.3 layers. The lid get a bit of funky texture, I haven't tried to remedy that but it still works fine. The latch just need to be pressed down hard to come lose and the lid just has to be nudged back into place to come lose. The CAD I made is not perfect and I might do upgrades later on. Maybe ;)