The popularity of collimators on semi-automatic pistols seems to grow exponentially. Once seen only on fancy sports guns, they find their way onto many pistols in civilian and military holsters. After overcoming one's habit of using iron sights, collimators allow to aim at a target much faster, and make accurate shots, as well as allow more accurately track moving targets.
Holosun is a company that in recent years has taken over a significant part of the market from such manufacturers as Vortex, Leupold and Trijicon with its products. So much so that the latter is trying to regain its share of the market through legal means, suing Holosun for alleged patent infringement.
Coming back to the subject matter, the Holosun 507C is a microcollimator designed for mounting on semi-automatic pistols adapted to the bolt spacing meant for the Trijicon RMR, once the undisputed (until recently) king of this type of sights in combat applications. Its characteristic feature is a solar panel that extends the battery life or allows the sight to operate even after its battery is completely depleted, assuming that the panel has enough sunlight at its disposal.
The ACSS Cyclops version received a reticle in the form of an inverted V surrounded by a huge circle invisible in the lens lumen when properly aligned with the shooters sight. However, in the case of unorthodox shooting positions or use by shooters unfamiliar with this targeting system, when the circle is seen in the lens when the pistol is held at an angle, it is to indicate where to look for the central aiming point. This concept seems to be very good.
The basic features of the Holosun 507C are intended for pistols, but also for carbines, submachine guns and shotguns. The solar panel, two reticle types (V-ka 10 MOA with a circle and V-ka 10 MOA without a circle), the Shake Awake battery-saving technology, a black anodized aluminum housing made of 70-75 T6 alloy, a battery charged from the side without removing the sight from the weapons, working time of 50 000 hours and a lifetime warranty. Price - 310 USD.