The bright and ultra-durable hiviz litewave sight will enhance your confidence and shooting experience for the ruger p-series and sp101 revolver.It features an all steel frame and interchangeable litepipes.Factory height front sight compatible with factory rear sight.Blade width: 0.125".Blade height: 0.135" litepipe diameter: 0.090".Litepipe handgun version #5.It will not fit p345 and sp101 chambered for 327 fed.Pinned sights must be drilled for the pin, we recommend gunsmith installationType: Fiber Optic FrontFrame Material: SteelFrame Color: BlackFirearm Fit: Ruger P-Series/ SP101Style: Fiber Optic Front SightFront Material: Fiber Optic LitePipeFront Color: Green Fiber OpticFirearm Type: Handgun