Posted by Howard on 3/28/2016, 9:21 pm, in reply to "legality"
Wish I could answer for your state, but technically a magazine has to have a spring. If you make a box type cartridge feeding guide that is gravity operated that may side step the technicality. I would call it a "cartridge feed guide box" instead of "magazine". That is federal rules so I hope that might be a little help.