Upgrade your competition or training Glock with XS Sights Fiber Optic Sights precision CNC-machined components and a bright fiber optic front insert for fast sight acquisition, precise alignment, and easy installation. Ideal for range practice, competition, or your first sight upgrade. Product Details Bright front sight: Green fiber optic insert is highly visible in bright light. Serrated rear sight: Serrated face reduces glare and distractions from the front sight blade. Fitment: Fits Glock generations 1 5 and is compatible with Glock MOS models. Replaceable: User-replaceable fiber optic insert (replacement orange fiber rod included). Manufacture: CNC machined in Fort Worth, TX. Front sight dimensions: 0.215" tall 0.125" wide visible yet narrow for extreme precision. Fiber optic details: 0.060" diameter fiber gathers light and fluoresces for excellent visibility in bright range/competition conditions. Rear sight geometry: 0.145" wide notch with crisp, defined edges for fast acquisition and precision alignment. Sight picture: Similar to the R3D or Minimalist sights but optimized with a bright insert for well-lit environments. Kit Includes Front sight with green fiber installed Serrated rear sight Replacement orange fiber rod Insert tool and instructions