The Holosun HE510C-GR
Hey all, we here at True Shot Academy are going to go over the Holosun HE510C-GR today. Like other Holosun optic offerings, the HE510C-GR provides shooters with a high-value sight. Today we are going to delve into the optic’s traits, features, use cases, and other considerations. Without further ado, let’s talk about the Holosun HE510C-GR reflex sight.
Who is Holosun?
Holosun is a company well-known for their production of affordable electronic sights. Their product offerings encompass optics and other equipment such as IR lasers, illuminators, and even night vision and thermal optics. Holosun products have been utilized for duty use, competition, and recreational use by shooters of all types.
Holosun is known for producing affordable optics while integrating advanced features. Many Holosun optics include user-adjustable reticles that allow shooters to switch between reticle styles on the fly. Additionally, many of their sights incorporate solar panels that either assist or back up the onboard battery system.
What is the Holosun HE510C-GR?
The Holosun HE510C-GR is a versatile, feature-packed reflex sight that delivers excellent performance without breaking the bank. This optic features Holosun’s Multi-Reticle System (MRS), Shake Awake, and Solar Failsafe technologies. The large viewing window provides a generous field of view for fast target acquisition and tracking while maintaining a crisp sight picture.
Built with a durable aluminum housing and a titanium hood, the optic withstands heavy use and impact. The HE510C-GR is optimized for long guns such as rifles, shotguns, and pistol-caliber carbines (PCCs).
Holosun HS510C Variants
Holosun offers two versions of the 510 model reflex sight, identical in features but differing in reticle color. Both the HS510C and HE510C-GR include MRS, Shake Awake, and Solar Failsafe systems. The HS510C uses a red reticle, while the HE510C-GR features a green reticle—two of the most popular and effective color options for reflex sights. We at True Shot Ammo currently carry the green variant.
Multi-Reticle System (MRS)
The HE510C-GR uses Holosun’s Multi-Reticle System, giving users two reticle options: a 2 MOA dot or a 2 MOA dot with a 65 MOA circle. Reticles are switched by holding the “–” button on the optic’s left side for three seconds. The single dot offers a minimal, precise sight picture, while the circle-dot combo enables faster target acquisition and better close-range performance.
Mounting the HE510C-GR
The HE510C-GR includes an integrated 1913 Picatinny mount with a quick-release lever system. The user can adjust tension for their rail, close the locking lever, and secure the optic in place. A locking tab prevents accidental release. The mount provides an absolute co-witness height (1.41 inches) and includes a spacer for a lower 1/3 co-witness (1.63 inches).
Brightness Settings
The HE510C-GR offers 12 brightness settings: 10 for daylight and 2 for night vision. These are adjusted via the plus and minus buttons on the left side of the optic. This wide range ensures visibility under bright sunlight, indoor conditions, or when using night-vision devices.
Battery Life
The optic runs on a single CR2032 battery housed in a side-loading tray, secured by two screws. Holosun rates battery life at approximately 50,000 hours under optimal conditions. Battery longevity is extended further through efficient LED design, Shake Awake, and Solar Failsafe features. Users can conserve power by keeping brightness lower or turning the unit off when not in use.
Solar Failsafe
When operating in Auto Mode, the HE510C-GR utilizes Holosun’s Solar Failsafe system. The optic can draw power from ambient light in case of battery failure, automatically adjusting brightness according to light conditions. Bright environments yield brighter reticles, while darker settings produce softer illumination—keeping the sight functional even when the battery is depleted.
Shake Awake Technology
The Holosun HE510C-GR features Shake Awake technology, which powers down the optic after a preset period of inactivity (default 10 minutes). Movement instantly reactivates the reticle. The timer can be customized from 10 minutes to 12 hours or disabled entirely. This smart power management ensures readiness while preserving battery life.
What is the Holosun HE510C-GR Good For?
The HE510C-GR excels across a variety of shooting applications—recreational plinking, competition, home defense, and training. Its wide field of view, crisp reticle options, and quick-target acquisition make it ideal for both casual and professional shooters. Whether for a range day or serious defensive use, this optic delivers speed, accuracy, and reliability.
Conclusion
The Holosun HE510C-GR reflex sight represents excellent value for shooters seeking a dependable, feature-rich optic. With options such as night-vision compatibility, a green reticle, and advanced Holosun technologies, the HE510C-GR stands out in its class. At True Shot Ammo, we stock Holosun products like the HE510C-GR along with a wide range of ammunition in popular calibers including 9mm, 5.56, 12 gauge, and .22 LR. Whether you’re looking to buy a Holosun HE510C-GR, another Holosun optic, or purchase bulk ammo, we have you covered. As always, happy shooting.
