HOLOSUN HE510C-GR / HS510C Multi-Reticle 2 MOA Dot & 65 MOA Circle

In this review the HOLOSUN HE510C-GR / HS510C is evaluated as a long gun open reflex optic that balances speed and precision for close to mid-range work. The bottom line: this sight is best for shooters who want a fast, versatile reticle and long battery life in a rugged package. The defining reason to buy is its Multi-Reticle System and Solar Failsafe that deliver a large 65 MOA circle for rapid target acquisition and a 2 MOA dot for fine aiming, while the Shake Awake and long battery life keep it ready in the field.

Key Features

• Multi-Reticle System: The 65 MOA circle with a 2 MOA dot gives a quick aiming reference for close targets and a precise dot for deliberate shots.
• Solar Failsafe: The optic uses ambient light as a backup so the reticle remains visible if the battery fails while in Auto Mode.
• Shake Awake Technology: The sight conserves battery by turning the LED off when idle and instantly reactivates with movement or touch.
• Durable Construction: An aluminum housing with a titanium hood and MAO finish provides shock resilience for carbines, PCCs, and shotguns.
• Long Battery Life: The Red Super LED and CR2032 battery deliver up to 50,000 hours of runtime under typical conditions.
• Practical Mounting: The included QD absolute co-witness mount yields a 1.41 in dot height suitable for standard rifle setups.

Who It's For

The HE510C-GR / HS510C is ideal for shooters who need a versatile reflex sight for home defense, range work, or dynamic shooting where quick target acquisition matters; it pairs well with carbines, PCCs, and shotguns. Users who value battery longevity and a reliable backup power method will appreciate the Solar Failsafe and Shake Awake features.

Shooter types who should look elsewhere include those needing magnification or a very compact closed reflex for concealment; while this open sight provides excellent field of view, it is built for red dot speed and not for long-range magnified engagement.

Pros & Cons

Pros

• Fast, clear aiming with a useful 65 MOA circle and precise 2 MOA dot for a range of shooting scenarios.
• Excellent battery management via Shake Awake and up to 50,000 hours from the Red Super LED and CR2032.
• Robust build with aluminum body and titanium hood gives confident durability under recoil.
• Solar Failsafe provides a practical backup to electrical failure when light is available.

Cons

• The open reflex form and multi-reticle layout may be more than some precision-only shooters need when a single-dot sight would suffice.

Specifications

Reticle	Red 2 MOA Dot & 65 MOA Circle
Light Wavelength	650nm
Magnification	1x
Battery Type / Life	CR2032 / up to 50,000 hours
Window Size	0.91 x 1.26 in
Housing	Aluminum with Titanium Hood
Adjustment per Click	0.5 MOA

Our Verdict

The HOLOSUN HE510C-GR / HS510C is a strong value for shooters wanting speed, durability, and long uptime; its Multi-Reticle System and Solar Failsafe make it especially useful for close-quarters and duty-style roles. For most carbine and shotgun users this sight offers an excellent mix of practical features and build quality without an excessive price premium.

Frequently Asked Questions

Does this sight offer night vision compatibility?
It includes brightness settings and NV compatible modes indicated in its feature set for lower brightness use.

What mount height does it use?
The sight ships with a QD absolute co-witness mount giving a roughly 1.41 in dot height.

How long will the battery last in normal use?
With the Red Super LED and power management features the CR2032 battery life is rated up to about 50,000 hours under typical conditions.