Williams Fire Sights are fiber optic light gathering sights that offer high visibility, improved sight picture and fast target acquisition. Fully adjustable rear metallic Firesights fits all standard 3/8 dovetails. This will also fit Savage 60 rifles with 3/8 dovetails. Front FireSight fiber optic replaces existing factory bead. These will fit on most lever action rifles with RAMPED front sights and also all Ruger 10/22 models. No gunsmithing required.