This thing will be updated with more sizes as i go, feel free to request.
Print orientation like katobu mags. Front and Back on their respective front-/backface.
A foamblast style drum spring is recommended though a magazine spring sized for half lengths should work aswell.
Highly suggest printing the back piece in transparent/translucent and the front in a solid color of your choice to make full use of this print orientation and assembly style.