*Fits standard 20mm Picatinny or Weaver rails.*Precision windage and elevation adjustments. Designed for fast target acquisition with increase precision.*Multi-coated lens reduces the appearance of light reflections, which provides clearer image. Waterproof, shockproof & fogproof.Magnification: 1XReticle: 4 MOA Red DotWeight (Ounce): 4.15Length (Inch): 2.55Windage/Elevation Click Value: 1 MOA per clickObj. Aperture: 22 mmField of View: 50 degreesEye Relief: UnlimitedAdjustment Rang: 30 MOAFog Proof: YESShock Proof: YESWater Proof: YES