I would not recomend this bow sight as they are not very durable, I had 1 break after 1 week of usage and the manufacturer gave me some lame excuse that I tightenend the front adj. screw to tight and would not stand behind his product. I have had 2 other sights on my bow(Truglo & Hindsight) with no breakage for adjusting any screws. The Manufacturer did tell me that other people have also broken the sight and 1 person on more than 1 occasion. Do yourself a favor and buy a more durable sight for your bow.By the way I am now using a Hindsight sight on my bow and it works great and is made way better than the Extreme Outdoors site.