Micro parlor airgun mini qev pneumatic

Everybody is using 3D printers but I like functional 3D pen projects. So I took my tiny qev cannon (cal 4'5mm) and made a matching frame to make a saloon / parlor airgun. Charging takes some time, but just like any muzzleloader. Tiny plastic beads fly at 148m/s, peaking 0'69J Steel bbs are possible thanks to a tiny magnet inside. The frame is 3D drawn PLA plus toothpicks, skewers and some rubber bands. Trigger is even less than double action :) Eye protection is mandatory! (next plan is a working model passenger airbag!!)