Toy Mini Spring Gun

Simple Mini Spring Gun
This Spring Gun need three additional parts.
1. Spring 1ea (about 4~7mm Dia) for projectile
2. Spring 1ea for trigger (but, not required)
3. Bolt 1ea (about 3.8mm thread dia.)
and
One end of the spring for the projectile is put into the hole and bend.
For more reliable bullet hook, Print bullet_round2.stl
For a lighter, distant bullet, Print 10% infill and 1mm thick(top and shell)
Thanks!