Airsoft flip up scope mount

thingiverse

You'll need a 6mm pin, about 50 mm long, once you print it off. I used a 6x50mm bolt and cut the head off. Also, you'll need three 3x20mm Allan bolts or whatever type you prefer, as long as they're no longer than 20mm - otherwise, the hinge will hit the flip mount and won't work properly. You'll find the holes for the lower mount for the three Allan bolts on the closed print version, which has a 0.50mm covering. All you have to do is line up the two parts together and use a 2mm or 2.5mm drill bit to drill out - just make sure you don't punch through.