Well, I hate to say it but my old eyes just can't hack it anymore. I had to replace my beloved Tech Sights with a scope. SO, I'm offering up a set of TSR-100 Tech Sights for the Ruger 10/22. Includes front and rear sights, all mounting screws, and I'll even throw in the sight adjustment tool for free! $50.00 firm. If interested, please PM me! Thanks!