Burris Fast Fire III 3MOA for long guns

The new generation of red dot reflex sights
 
Smaller, lighter, and more compact than most other red dot sights, the FastFire III with its frame made of stainless steel, bronze, and anodized aluminum is extremely robust and durable. Due to its small dimensions and low weight, the FastFire III can be mounted on practically any firearm, even on the slide of large-caliber, semi-automatic pistols. Since the eye relief is unlimited, the FastFire III can be used on handguns, rifles, and hunting rifles. The low magnification provides an extremely large field of view, and the FastFire III is practically parallax-free in the range between 10 and 140 meters. Between the highly polished lenses is a reflective narrowband reflex surface that protects against scratches and abrasion.
 
For optimal light transmission. The reliable new FastFire III is 100% waterproof and submersible.
 

Unique 1-step battery change

Battery accessible from the top
No removal required
No change in point of impact
Low battery indicator never again sudden power failure. You can
  replace the battery in time, and your equipment is always ready when you are.

Innovative protective cap

The included lens cap protects the sight from rain and snow, ensuring clear visibility at all times. Since the covers are transparent, they can remain on the sight during rapid shots.

Intelligent brightness control
You can manually adjust the brightness to three different levels. Alternatively, you can use the electronic control, which automatically adjusts the brightness for you. Reticle click adjustment (1 click 7mm/50m) 3 manual and 1 automatic electronic brightness setting approx. 5 years battery life Automatic shut-off Protective cap with transparent lenses Length 45mm, weight 28g Covering size 4.4cm/50m Delivery including battery CR1632