Just remove the back clip... it won't work...
I thought it was broken... but the rear board is working diagonally and can work...
It is obvious that there is no completion of the loop..., think of it as a beautiful tritium decoration...
AdmiralJigzThere is no need to fill the entire space with glue. Well, you can fill the slot full to secure it more, but it will block some glow. Just dip the tritium into the glue a little, and place the tritium in the slot. then use UV light to cure.