SNAP Plunger Head

This is a 3d printable SNAP Plunger Head that is designed to be put into a "Nerf" homemade called a SNAP. The part uses a dash 123 O-ring that is found on other homemade blasters. Other hardware that is needed is a Flat head No.6 screw that is 3/8 to 1/2in in length (sorry if you use metric, I don't know what the conversion is.)