Shorty (M79) Airsoft grenade launcher

40mm airsoft grenade launcher, a fun to use replica inspired by the M79 grenade launcher in is short version.

I use it to fire 40 mike grenade, it's an instant generator of smile on your face !!!

The main issue you can have is to find the right spring to put on the firing pin. The spring you can find into the mag ejector button of a M4 replica is the perfect size, but really hard, I finally roll one myself from the spring of a pen.

I print it in PETG with a 100% infill for all the parts except for the stock who need less, i make a first version with 50% infill but i broke the receiver.

Depending of your Gcode and printer, you may need a bit of filling here and there but nothing huge, prefer to adjust my parts to have good interactions. Tap drilling is also necessarry.