4x32 Prismatic Glass Crosshair Reticle Scope w/ Fiber Optic Sight Built on Proven Robust Platform. Completely Sealed and Nitrogen Filled, Shockproof, Fogproof and Rainproof Crystal Clear Fully Coated Prism Lens for Excellent Light Transmission and the Best Clarity Combat Ready Rapid Target Acquisition Glass Reticle with Range Finding & Ballistic Precise 1/4 MOA Click Value for Windage and Elevation Adjustment Compact Design with Built-in Double Side Rails and Integral Picatinny Mount