40mm grenade "emergency push button"

thingiverse

Here is a very simplistic 40mm grenade launcher that works very well. It needs: - 3 pen springs - 3 wooden screws, diameter 3, cut to 9mm maximum - an M3 screw - 6 neodym magnets, 6mm x 3 The cover is held in place by the magnets. The stroke is adjusted by the central screw. The 3 springs press directly on the grenade. The magnets on the body side of the grenade launcher must remain protruding.