Yea I have shot 100yds a couple times, and from what I recall You would need a sight pin down where your lower cam is. You would need about 12 of those sights attached together. This seller needs a reality check. I think I will tell him about his lies. Then I will also get in his face a little bit about his 75.00 shipping charges.I betI could fed-ex myself to california from michigan for 75.00!!