This is Sjef van den Berg’s sight pin of choice for some years now. Developed together with Tru-Ball/Axcel to his specific wishes. The fact that this sight pin does not have any glass which means you don’t have any issues shooting in the rain. With the rheostat cover by Axcel you can dim the fiber when it is too bright when the sun is out for instance. The scope is made out of high quality aluminium in the United States.
You can choose between a 0.019″ or a 0.029″ diameter fiber and it comes in either green or red.