Sniper only authorized seller in the United States, the red dot without "Sniper" Logo is counterfeit. FeaturesDurable all metal constructionAllow for precision windage and elevation adjustmentsRed dual-illuminated dot reticles with brightness controlLightweight, dust-poof, weatherproof, and shockproofBuilt-in for 20mm Picatinny/Weaver railsHigh profile mounting option with the 1" rail riserRail riser compatible with both 20mm and 11mm dovetail railsLens covers and storage box includedBatteries are pre-installed for instant use out of box. One spare battery included for your convenience SpecificationsDimensions: Length: 2.55" / 65mm, Width: 1.57" / 40mm, Height: 1.77" / 45mm (with low profile mount), 2.80"/ 71mm (with high profile mount)Weight:117g (4.15 oz) with low profile mount, 172g (6.25 oz) with high profile mountObj. Aperture: 22 mmMagnification: 1xField of View: 50 degreesEye Relief: UnlimitedReticle Type: 2 MOAFinish: Black MatteBattery: 1 x CR2032 (included)