Holosun 407COMP

• Large competition window: The 22x28 mm viewing window gives a more open sight picture, helping the eye pick up the dot faster and making recoil tracking easier in rapid strings.
• 6 MOA green dot: The larger aiming point is quick to see against varied backgrounds, which suits close-range handgun use and fast target transitions on carbines or PCC platforms.
• Side-loading CR1632 battery: The battery tray can be accessed without removing the sight, so battery changes are simpler and the optic can stay in place on the firearm.
• Shake Awake and Lockout features: The sight wakes when moved and can be locked against unintended button input, improving readiness while reducing the chance of accidental setting changes.
• RMR footprint compatibility: The Trijicon RMR standard footprint broadens mounting options across many optics-ready slides and adapter plates, making integration easier.

About the Holosun Reflex Series

Holosun Reflex sights cover the company’s open reflex designs for both pistol and long-gun use, with the family stretching from the 510C introduced in 2016 to the pistol-focused 507 and 508 series introduced in 2017. Within Holosun’s lineup, this series serves shooters who want a compact, fast-targeting optic for dynamic applications rather than a magnified sight for distance work. The range includes models built around simple dot aiming as well as versions with the company’s Multi-Reticle System, depending on the intended role.

A defining trait of the series is its emphasis on speed, compactness, and practical electronic features. Pistol-oriented models are designed around slide-mounted use, while larger open reflex variants suit carbines, pistol-caliber carbines, and shotguns. Across the family, Holosun commonly pairs open-window reflex construction with technologies such as Shake Awake and Solar Failsafe on relevant models, giving users a sight that is quick to acquire and easy to keep ready. The result is a broad reflex-sight series aimed at competition, defensive use, hunting optics setups, and general shooting where a clear window and immediate aiming reference matter most.

About the Holosun 407COMP

The Holosun 407COMP is built for shooters who want the wide-window handling of a competition-style open reflex sight with the simplicity of a single aiming point. Instead of a multi-pattern reticle, this model uses a 6 MOA green dot, which is easier to pick up quickly during fast presentations, close-range stages, and recoil recovery. That makes it especially well suited to handgun competition, practical shooting, and fast carbine or PCC setups where speed matters more than a finer aiming point.

The sight’s 22x28 mm window is one of its defining advantages in use. A larger viewing area helps maintain awareness around the target and makes the dot easier to track through movement and recoil. Holosun also equips the 407COMP with adjustable brightness, so the dot can be tuned for bright outdoor ranges or dimmer indoor conditions. Because the optic is parallax free, the aiming point remains intuitive in fast, imperfect shooting positions where the eye is not always perfectly centered behind the window.

Mechanically, the 407COMP balances low weight with durability. Its aluminium housing keeps weight to just 51.00 g, which helps limit added mass on a pistol slide while still standing up to regular use. The side-mounted CR1632 battery tray simplifies battery replacement, and the stated 20000.00 h battery life supports long service intervals. With a Trijicon RMR standard footprint, the sight fits a wide range of optics-ready handgun slides and mounting plates, making it a flexible option for both handgun and rifle reflex dot sight applications.

About Holosun

Holosun has worked on optics and laser/infrared technologies since 2013 and focuses on sights, lasers, and illumination systems for shooting, hunting, law enforcement, and military use. The company is headquartered in California and operates through a global manufacturing network. In its product history, Holosun identifies the 403 Series in 2015 as its starting product line, followed by the 510C open reflex sight in 2016 and the 507C and 508T pistol sight series in 2017.

Holosun is particularly known for practical electronic sight features that have become closely associated with the brand. Its technologies include Shake Awake, Solar Failsafe, and the Multi-Reticle System, all aimed at making red dot sights more adaptable in real use. In 2018, the company introduced its LE and LS laser series along with Super Green LED technology, reinforcing its position in compact aiming systems for both sporting and professional applications.

Main Features

• Product type: Reflex sight
• Magnification: 1x
• Reticle: 6 MOA
• Dot size: 6.00 MOA
• Reticle illumination: Yes
• Adjustable intensity: Yes
• Parallax setting: Parallax free
• Windage adjustment range: 14.54 mrad / 50.00 MOA
• Elevation adjustment range: 14.54 mrad / 50.00 MOA
• Window size: 22x28 mm
• Footprint: Trijicon RMR standard
• Mounting standard: Trijicon RMR
• Battery: CR1632
• Battery life: 20000.00 h
• Material: Aluminium
• Length: 45.00 mm
• Width: 33.00 mm
• Height: 33.00 mm
• Weight: 51.00 g
• Working temperature range: -10°C - 50 °C
• Waterproof: Yes
• Fogproof: Yes
• Shockproof: Yes
• Made in: China

Warranty

Holosun provides a 3-year warranty from the date of original retail purchase for the electronic components of this sight.