The sleek and brand new design of the Aimpoint H34S makes this sight the easiest choice for compact or lightweight firearms. Ideal to be used on standard or short action rifles, in addition to shotguns and magnum handguns. It may be mounted the usage of any standard 34 mm rings. This sight belongs to the Hunter series of sights.Features for H34S:- Ideal to be used on standard or short action rifles, in addition to shotguns, and magnum handguns- Ultra brand new European design features and distinctive visual lines – Two 34mm Weaver-style sight rings supplied with every sight- Multi-coated 39 mm objective lens- 50,000 hours of constant operation from a single CR-2032 battery- 2 MOA dot- Fully waterproof- 12 position digital push button intensity adjustment- Adjustment turret caps are the only tools required to zero the sight- Incredibly fast and accurate- Legendary Aimpoint toughnessStandard features for all Aimpoint sights:- Unlimited field of view- Parallax-free and unlimited eye relief- Unaffected by extreme weather conditions- Rugged, durable construction- No hazardous materials- No laser emission that may be harmful in your eyes- Increased aiming confidence- Technology: ACET (Advanced Circuit Efficiency Technology) – Working Principle: Reflex collimator sight – red dot sight Optical Data: – Lightsource LED (Light Emitting Diode) totally eye-protected – Lightsource Wavelength: 650 nm red light – Red dot size in MOA (minute of angle): * 2 – Parallax: Absence of parallax- No centering required – Eye relief: Unlimited – Night vision compatibility: No – Anti-reflex coating all surfaces & multi-layer coating objective lens: Yes – Magnification: No magnification (1X) Electronic Data: – Battery: One 3V Lithium battery, type CR2032 – Battery life in hours: ** 50,000 (over 5 years of continuous use) – Dot intensity adjustment: Digital push button – Daylight (DL) settings: 1 Off & 12 DL Mechanical Data: – Material housing: High strength aluminum – Surface finish: Anodized, semi-matte – Color housing: Black – Adjustment: 1 click 20mm at 100m, (1/2 at 80 yds.) – Mounting methods: 2 Rings, 34mm, (1.34) Environmental Data: – Temperature range: -30 – +60C, (-20 – +140F) – Water resistance: submersible to Fully waterproof – Radioactive components used: None Dimensions: – Length: 7.75″ – Maximum distance between rings: 4.6″ – Minimum distance between rings: 1.77″ – Objective diameter: 1.85″ – Tube diameter: 1.34″ – Weight sight only: 8.8 oz. * 1 MOA 30mm @ 100 meters 1 at 100 yards.** at room temperature & at start-up setting (7).