i need to send you pictures of how i eliminated the overtravel in mine. its easy to do and works great. all you need is a 1/16" drill and if you send me your addy, i can put some of these pins you will need to complete the job in an envelope and snail mail them to you. chuck geyer shot it a few weeks ago and loved it. ask him how far out he was shooting with it open sights. when i could see better, and i'm being honest, i could hit a railroad tie plate at 300 yards 7 out of 10 times.