I have the Tru Glo single pin adjustable sight that has the trinium fiber optic, it is really nice sight for the money, I had a copper john with the .019 pins and I found them to be a lil small for my liking. The tru-glo adjustable with the trinium pin is really nice..... The trinium makes it lightly glow in the dark so you dont have to have a light or anything and it stays brighter than my dad impact arhcery cosmic..