Báng Pin Gọn Cho Xshot Motorized Piston Pump

The mpp is pretty long (about the same as a stock harrier or swift). Can't do much about the core or barrel so here's an ultra compact stock that can fit a battery as wide/thick as the stock one or one as long as what the BK1S uses.

Print without supports. Files are preoriented.
supports can be cleaner than bridges but those bridges are hidden when assembled anyways.
Print a tighter door if using PETG

Try Donutcat's other threads if the provided on does not fit.

Issues: 

• 3s + a 200 fps spring are strong enough to kick the door out when printed in petg. Pla with those untested.

Step provided so people better at designing stocks can remix this.