Summary

This is a simple attachment for Glocks, to help control the recoil with your left thumb for competition shooting (You could probably mirror it if you're left handed, but I didn't test the clearance out yet)

I printed the main body with nylon 910, and machined the lever out of 6061 T6 aluminum + powder coated with Illusion cherry The lever can be printed, but it just won't be as strong.

I've only tested this on a Glock 17 gen 3 so far, and may redesign the main block in the future for better fitment. Although it already fits nicely as is.