Have you been looking for a very compact bullpup airsoft gun to use for CQB games? Try this Tokyo Marui Mini Steyr which is full auto though you cannot change the magazine as the BBs are stored internally. This fires 0.12g BBas and uses 4 AA batteries as power source. Airsoft Mike gets one for an unboxing and overview video so watch if it is something you fancy.

Tokyo Marui produces mini airsoft guns of popular weapons and in this video Mach Sakai reviews the Steyr Mini. This almost the size of handgun that is powered by 4 AA batteries in the stock area. It has hop-up system and a capacity of 170 BBs. Is it something nice to use for some plinking? It looks like it.