EOTech Holographic Red Dot Sight Drone Strike Reticle w/1 MOA dot Black. The EXPS3 offers true two eyes open shooting for fast target acquisition night vision compatible settings and a 7mm raised quick detach base for lower 1/3 iron sight co-witness. Specifications for EOTech EXPS3-DSR Holographic Red Dot Sight: Manufacturer: EOTech Color: Black Finish: Hard Coat Fabric/Material: Aluminum Magnification: 1 x Objective Window Size: 1.2 x 0.85 in Reticle: Drone Strike w/1 MOA dot Illumination Type: Holographic Illumination Color: Red Brightness Settings: 30 Eye Relief: Unlimited Adjustment Type: MOA Adjustment Click Value: 0.5 MOA Emitter Type: Enclosed Field of View Linear: 90 ft at 100 yds Parallax: Parallax-free Lens Material: Glass Laminate Optical Coating: Antireflective Base/Mount Type: QD Mount Battery Type: Lithium Metal CR123 Battery Quantity: 1 Battery Life: 1000 hours Operating Temperature: -40 - 140 Fahrenheit Weather Resistance: Yes Water Resistance Level: Submersible Water Resistant Mark: 33 ft Shockproof: Yes Fogproof: Yes Gun Make: Universal Gun Model: Universal Length: 3.8 in Width: 2.3 in Height: 2.9 in Weight: 11.2 oz Package Contents: EOTech EXPS3-DSR Holographic Red Dot Sight EOTech EXPS3-DSR: EXPS3-DSR Holographic Red Dot Sight Drone Strike Reticle w/1 MOA dot Black