The reflector sight’s invention is attributed to the Irish telescope maker and optical designer H. Grubb at the very beginning of 20th Century. There were much more or less successful attempts to attach a reflector sight to a firearm but interestingly, the reflective sights have seen the first combat use in the Great War not by British but by German fighter aircraft. Tried in the first air combats, the precursors of Dogfight aerial battle, these simple reflex-type gunsights have indicated their enormous potential, and by World War II they were standard equipment.
The traditional way of aiming means that dominant eye, the rear iron sight, the front iron sight and the target must all be correctly aligned, using a red dot or reflex sight means that shooter with both eyes open only has to superimpose the reticle/ red dot itself over the target. The countless examples proved that red dot sight is probably the easiest to use and fastest way to be accepted by the novices to the shooting world.
As an enhancement of the traditionally open sight, the reflex sight niche of aiming devices consists of two types of sights: a reflex sight and a holographic sight. However, based on entirely different technologies they are used the same way and for the same reasons. While the reflective and holographic sights are optimized for fast shooting and rapid target acquisition, they are also reliable in the harshest conditions. Developed for the fast shot, the reflex- type of sights offer a lot of advantages over iron sights so it should not be surprising that they are mandatory item of equipment any modern military and police special units.
From the excessively rich offer of reflex sights, they can be found in two general configurations; the open sights or so-called "head-up" type and the other more conventionally configuration, looking actually like a "scope" with a short, tubular body.
The subject of this article is a family of open sights of a renowned optic manufacturer located in Greely, Colorado, Burris Company, named after its founder Don Burris in 1971. The Burris production line called FastFire belongs to a subcategory of the Miniature Red Dot (MRD) also known as "mini reflex sights" and "mini red dots." The sights take benefit of the fact that the reflector sight's only optical element, the optical window, doesn't need any housing at all. On the one hand, the obvious advantage is less weight, but on the other hand, they are significantly more susceptible to various external factors. Since very similar in size, weight, and function, Burris FastFire falls into the same category of miniature red dots as the Docter Optics reflex sight.