A small adapter plate to convert a quarter-turn mount to 2-pronged GoPro. There are plenty of models to convert to a 3-pronged GoPro mount, but I struggled to find one to go to the other side of the GoPro mount.

This is designed to accept a quarter turn mount plate with the metal screw inserts (easily found on Ebay/Amazon/AliExpress) and requires two M3x8mm socket cap bolts for assembly. There is also an alternative version that has the quarter-turn mount designed by elmanu included in the print available.