Prototype Picatinny Mounted Silly Shell Blaster

Disclaimer: Old slapdash thing I made

Silly shell blaster using mostly hardware you can harvest from an x-shot longshot or removed from it after upgrading (while leaving the longshot functional): screws, 1 mag retention spring, plunger spring, plunger tube and O-rings. exceptions: front O-ring  to seal with shells, and nuts/bolts for mounting

Can fire 6 sealed half darts but isn't powerful enough to launch triple rival consistently or very far (works with 2 rounds). Cut down K25 recommended for better power (Have yet to get the chance to reprint and test durability with my 11~ coil one).

various priming rods and plunger heads to try to get a smooth fit and decent seal. Screws may be able to be replaced with others that thread into a 3mm hole (some versions also use 2 m4 screws to secure the plunger head) and a cut down pen spring or similar works for the catch spring. Using 43mm od 39mm id stock plunger tube (use tape to fit into the back) and stock spring from the longshot.

the clips holding the body together may shake loose from firing, throwing some rubber bands over them can help.

front is the weakest part and should be printed with extra walls and extra infill.