Copper John has been known for years as having very solid durable hunting sights. Spot Hogg has the same reputation. I am getting a Copper John Dead Nuts 2 Competition for my 3d set up and an Extreme RT1000 for my hunting sight. Of these 3 and the others that have been mentioned you really can't go wrong. Pick the one that has the most features you are looking for and you'll be getting a good product.