Because the original size is a bit too bulky for me, I wanted to shrink the carabiner. When scaling down to 50%, I had the problem that the clasp no longer worked so well.
I modified Charlie1982's awesome design (https://www.thingiverse.com/thing:1008943) a bit and made it better scaleable.
For me, the model has worked well with both 75% and 50% scaling (see cover photo). You can find instructions for the assembly at the description of the orginal design.
The author remixed this model.