BARSKA 4x20 Electro Sight Scope M-16 Riflescope

4x20 Electro Sight Carry handle Scope is specifically designed for M-16 & AR-15 Rifles. Features a built-in bullet drop compensation system calibrated to 500 yards in 100 yards increments. Integrated base that easily mounts on to the inside track of a rifles carry handle, at base of the intergrated mount is a peep sight that allows you to use the rifles iron sight. 30/30 reticle, improved design and fully coated crisp clear optics. Specifications: - Magnification: 4x - Objective Lens: 20mm - Reticle: 30/30 - Exit Pupil: 5mm - Optical Coating: Multi-Coated - Field Of View: 22ft 100yds - Eye Relief: 2.7 inches - Adjustment Knob: Side adj. windage and elevation - Finish: Black Matte - Weight: 13.4oz - Length: 6.9inch - Included Accessories: Lens Cloth - Warranty: 1 year Limited Warranty