L&M Tactical XD-4 3X Magnifier with Flip to Side Mount

The XD-4 3X Magnifying Module can be used in conjunction w/ all AP sights for long-range aiming, alternatively whenever the situation needs closer or more detailed aiming capability.The 3Xmag can also be used as a hand-held 3X observation device. The 3Xmag has no reticle itself but uses the red dot in the AP sight as the aiing reticle,thus eliminating the need for re-zeoeing when shifting from non-magnified to magnified aiming and vice versa. Optication System Magnification: 3X Focus: Adjustable Objective diameter: 20mm Field of view FOV: 7" Exit pupil diameter: 7mm Eye relief : at 5° FOV 40-90 mm at full FOV 60-65 mm Dioptric adjustment: Fixed-1.0D Photopic, integal transmission: >80% Spectral transmission: >60%(700-1000nm) Resolution (Ip/mrad): >12 Dimensions: 11.8 x 44 x 38 mm (4.5"x1.7"x1.5") Weight : 200 g. (7,1 ounces) Material housing: Anodized aluminum, darj grey rubber covered black Temperature Range: -45degree C to +70Degree C in operation and storage Humidity: 0-100% condensing or non-condensing Immersion: 20 meters (67 ft)