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 installation. Front Sight Length: 0.750″. Front Sight Width: 0.122″. Front Sight Height: 0.268″.