Holosun HE510C Open Reflex | 2 MOA Dot | HE510CGRFDE

The Holosun HE510C (HE510CGRFDE) is an open reflex optic built for long‑gun applications where rapid target acquisition and adjustable reticle options are required. It integrates Solar Failsafe to maintain a point of aim when battery power is low and Shake Awake to preserve battery life during inactivity. The sight offers a Multi‑Reticle System (MRS) that includes a 2 MOA center dot plus a circle reticle option, and it ships with an absolute co‑witness quick‑detach Picatinny mount. The rugged construction and long battery life make it suitable for sustained field use on carbines, PCCs, and shotguns.

Product Specifications

• The model is HE510C (510C).
• The finish is Flat Dark Earth (Matte).
• The reticle includes a 2 MOA center dot and a circle reticle (circle size listed inconsistently in source materials).
• The optical window measures 0.91″ x 1.26″.
• The power source is a CR2032 battery with Solar Failsafe.
• The LED rated battery life is up to 50,000 hours.
• The mount is a QD absolute co‑witness Picatinny mount.
• The housing is aluminum with a titanium hood for added shock resilience.
• The weight is 8.3 ounces.
• The magnification is 1x.
• The dot size is 2 MOA.
• The eye relief is Unlimited.
• The optic is parallax free.
• The lens treatment is multi‑coated.
• The UPC is 605930624953.

This HE510C configuration balances quick target engagement and simple sighting with features intended to reduce downtime: Solar Failsafe provides auxiliary power when ambient light allows, and Shake Awake helps conserve battery when the optic is not in use. Its low profile QD mount and rugged materials make it a practical choice for users seeking a dependable open reflex sight for dynamic shooting applications.