Much needed for these tiny little things, designed for the blade front sight revolvers only. Too tall for the bead/post front sight style from NAA. Use a small dab of your favorite hard adhesive like 2-part epoxy or super glue. Can also use a small piece of thin double sided tape. Mine holds pretty well.
Make sure to rotate these sights to print on their face, I recommend a smooth buildplate of some sort so that the holes are still round when printed.
This is quite an old model of mine, I believe the fiber optic model was made for 1.5mm optic rods.
The author marked this model as their own original creation.