This HiViz Adjustable Sight Set is bright, ultra-durable and will enhance your confidence and shooting. It features an all steel construction, interchangeable LitePipes, and fully adjustable elevation at the rear sight. This model fits S&W M&P full-size, M&P long slide, and M&P M2.0. Does not fit Smith & Wesson M&P Compact, M&P 22, CORE, Shield. Litepipe diameter: Front Sight: 0.090″ Rear Sight: 0.078″. Front Sight Length: 0.730″. Front Sight Width: 0.400″. Front Sight Height: 0.370″. Rear Sight Length: 1.059″. Rear Sight Width: 0.850″. Rear Sight Height: 0.394″.