Aim-O 551 Holographic Sight is a compact design with a mini red dot sight. with a short body but a wide field of view. Ultra-fast aim at the target, it can give you a good experience of gun gaming.

5019 type  553 red dot sight

The red dot sight is made mostly of metal. The battery cover is the only plastic made element. The red dot sight is powered by two AAA batteries. The aiming reticle is illuminated in green and red. It is possible to adjust it both, horizontally and vertically. The QD system allows to mount the red dot sight.

Some of these models are so compact that they can be mounted on pistols, archery equipment, crossbows, and airguns.

This model, for instance, stands out for its versatility as it comes with two mounting systems, one higher and the other lower, to perfectly adapt to the type of firearm and significantly enhance its efficiency.