40mm Airsoft underbarrel grenade launcher

40mm Airsoft underbarrel grenade launcher

thingiverse

This is a Airsoft/Paintball grenade launcher for 40mm Shells inspired by the Madbull XM203. Since I´m still printing it, consider this a work in progress. You will need: - two ballpen springs (may need to be shortened) - three M4x30 Screws - M4 thread cutter - one 3 mm x 29,5 mm metal pin (for the firing pin)

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