We’ve replicated a Hi-Capa magazine and adapted it to take 30-round shotgun shells. A revised BB latch prevents any BB drop when the shell is empty. So far, we have tested this adapter on numerous TM capa’s.
An excellent choice if you want to run your capa on HPA as a holstered secondary, or if you just don’t want an AEG mag hanging out of your pistol! We chose to base the aesthetic around a 40-round extended capa magazine.
The adapter likes heavier BBs due to the Joule creep effect. Use at least 0.28g for good FPS.