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 windage and 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".Rear Color: Red Fiber OpticType: Front/Rear SetFrame Material: SteelFrame Color: BlackFirearm Fit: Smith & Wesson M & P Fullsize/Long Slide/M2.0Style: Fiber Optic Adjustable Sight SetFront Material: Fiber Optic LitePipeRear Material: Fiber Optic LitePipeFront Color: Green Fiber OpticFirearm Type: Handgun