Red Dot Gun Sight Scope Reflex Sight With 20mm Rail 

• Tubeless design with 33mm reflex lens aperture provides a wide field of view, suitable for rapid-firing or shooting of moving targets besides normal shooting
• Dual illuminated ( red and green);4 reticle shapes in one reflex sight, provide various choices in different occasions, like sunshine, cloudy day.
• Parallax corrected & unlimited eye-relief, improving the accuracy of holographic sights. Allen head screw type windage and elevation click adjustments, with locking screw, easy to adjust zero and hold well.
• The red dot sight is precision machined from high grade aluminum alloy with a matte black anodized, includes standard profile Picatinny mounting base. Reflex sight with fully multi-coated lenses provides bright and clear views for the user.
• Screen Size: 22mmx33mm;Weight: 130g; Item Dimensions:3.15in*1.37in*2.08in(8cm*3.5cm*5.3cm)