Williams fire sights, or Tru- Glow fiber optic sights make excellent sights. They take the place of the old one, and are around $50.00 for the whole package. I hate to admit it, but I am going to throw a pair on my one .50 caliber just for the late afternoon hunts. Them deer in the shadows are starting to blend into the shadows way too much for me. The other night I sat in the tree and watched them and since I could not get a clear sight/target picture, I did not shoot, but it was still a great day in the woods.