The drs1x lives up to its namesake with rapid and lethal target engagement at close quarters.The drs (defendu reflex sight) is so versatile and effective at close range, we've named it after the famed lt.Colonel william ewart fairbairn whose close quarters combat system was designed to rapidly disable an opponent with potentially lethal force.Perfect for tactical operations or home defense, the 1x reflex sight offers three reticles calibrated for speed and accuracy at 7, 25 and 50 yards.The c2 reticles- single dot, dot/stadia lines and dot/stadia lines/close dot.The window size is.96"h x 1.26"w in.Features a 13hr auto shutoff, 2000+ hrs of battery run time can operate on single battery, 7 illumination settings and three reticle options.Co-witness with iron sights or use with any multiplier.Model features matte flat dark earth color.Battery: (2) AAMagnification: 1xObjective: 0.96" x 1.26"Dot Size: 2 MOALength: 3.88"Weight: 10.40 ozFinish: Flat Dark Earth MatteReticle: C2 Reticle/ Red Multi ReticleAdjustment Size: 0.50 MOAProofs: Waterproof/Fog proof/ShockproofWindage Elevation: Adjustable