AIM Sports Scope with Cut Sunshade Dual-Illuminated Mil-Dot Reticle and QR Mount, 3-9 x 40 mm Milled from one solid piece of aircraft grade aluminum to withstand constant heavy recoil Fog proof and shock-resistant housing Dual-illuminated (Red, Green) reticles with adjustable rheostat for brightness control Angle cut sunshade reduces glare under bright light conditions BDC calibrated for .223