Feature Two Side Rails Fully Multi Coated, With Rear Adjustable Iron Sight With Fiber Optics Sight Chevron Rapid-Changing Reticle w/ 3 Different Color Specification Magnification: 4x Objective Lens Dia: 32mm Exit Pupil: 8mm Length: 145mm / 5.7&';&'; Weight (net): 465g / 16.4oz Eye Relief: 50mm Field of View: 36.6 feet @ 100yds Optics Coating: Fully-multi coated Reticle: Chevron rapid-changing Click Value: 1/4 MOA Elevation Range: 70 MOA Windage Range: 70 MOA Illumination: Red, green & Blue With rear iron sight With front fiber optic-sight Fit on 21mm picatinny rail and weaver rail Fast focus eyepiece at ocular lens adjustment Shock proof and fog proof (nitrogen purged) High quality aluminum alloy in durable black matte finish Free fitting involved: hex keys and cleaning cloth With two 36mm (1.4 inch) picatinny rails on either side of objective lens Feature 1/4" low finger windage and elevation turrets adjustments for scopes 3 color illuminated red & green& blue brightness illumination system, which can attach laser and flashlight Reticle