All specs confirmed for HS510C. Here is the finished description:
The Holosun HS510C Open Reflex Sight (HS510C) is a large-window solar and battery powered open reflex sight built on a 6061 T6 aluminum housing with a titanium-alloy protective hood, delivering a selectable 65 MOA ring with 2 MOA red center dot Multi-Reticle System through a 0.91 x 1.26 inch window with up to 50,000 hours of CR2032 battery life. Designed for carbine shooters, PCC competitors, and home defense rifle users who want a large-window solar-powered open reflex red dot sight for long guns with multi-reticle versatility, a titanium-protected hood, and a quick-release Picatinny mount included in the box, the HS510C delivers the proven Holosun Solar Failsafe and Shake Awake feature set on a rifle-optimized platform at a competitive price point.
Key Features
- Part number: HS510C
- Reticle: 65 MOA outer ring with 2 MOA red center dot, MRS selectable
- Reticle color: Red, 650nm Super LED
- Magnification: 1x
- Parallax free: Yes
- Eye relief: Unlimited
- Window size: 0.91 inches high x 1.26 inches wide
- Lens coating: Multi-coated
- Emitter type: Open reflex
- Housing material: 6061 T6 aluminum body with titanium-alloy protective hood
- Surface finish: MAO micro arc oxidation anodized black
- Dimensions: 3.3 inches long x 1.68 inches wide x 1.78 inches high
- Weight: 4.94 oz
- Adjustment per click: 0.5 MOA
- Windage and elevation travel range: plus or minus 50 MOA
- Brightness settings: 10 daylight, 2 night vision
- Operating modes: Auto brightness, manual brightness
- Power source: Solar Failsafe and CR2032 battery, internal tray compartment
- Battery life: 50,000 hours dot only, 20,000 hours ring and dot, at setting 6
- Shake Awake: Yes, motion-activated power on with last setting recall
- Co-witness: Absolute co-witness with included QD mount at 1.41 inch dot height, lower one-third spacer sold separately at 1.63 inch dot height
- Mount included: Quick-detach absolute co-witness Picatinny and Weaver compatible
- Water resistance: IP67
- Vibration resistance: 1,000G
- Working temperature: -22 to 140 degrees Fahrenheit
- Storage temperature: -40 to 158 degrees Fahrenheit
- Includes: Quick-detach absolute co-witness mount, CR2032 battery, T10 L-key, lens cloth, user manual
Special Features
- Solar Failsafe uses the integrated solar panel as both a secondary power source and a continuous ambient light sensor, keeping the reticle fully functional in any lit environment even after the CR2032 battery reaches complete depletion and automatically adjusting brightness to match changing lighting conditions.
- The titanium-alloy protective hood wraps the front of the housing and shields the emitter and lens from direct impact, muzzle blast, gear contact, and case transport damage that would compromise an unprotected open emitter under hard field and duty use.
- The Multi-Reticle System lets you toggle between 2 MOA dot only for precision shots at distance, 65 MOA ring only for maximum close-range speed, or the full circle-dot combination for a versatile aiming solution that covers both scenarios without changing hardware.
- The 65 MOA ring equates to approximately 68 inches at 100 yards, giving you a built-in range reference for shotgun pattern assessment, moving target leads, and close-quarters stage work where a small dot alone slows first-shot acquisition.
- Shake Awake powers the sight on the instant the firearm moves and shuts off after a selectable inactivity period, preserving the full battery reserve between range sessions, storage, and transport without any manual power management.
- The internal battery tray design keeps the CR2032 protected inside the housing body, giving the compartment a cleaner seal against moisture intrusion compared to external side-cap battery designs on competing optics.
Practical Benefits
- The large 0.91 x 1.26 inch window gives your eye a wide, unobstructed sight picture that makes the reticle fast to find on a rapid mount and lets you track moving targets and stage transitions without the window edge clipping your field of view.
- The included quick-detach mount installs tool-free onto any standard Picatinny or Weaver rail, so the HS510C goes directly from the box onto your carbine, PCC, or shotgun without sourcing additional mounting hardware or risers.
- The HS510C is magnifier compatible, and pairing it with a 3x or 5x magnifier behind the sight gives you a clean, precise aiming point at extended distances while retaining the ability to flip the magnifier aside for fast close-range work.
- The 2 night vision compatible brightness positions make the HS510C a functional option for hunters, patrol rifle users, and competition shooters who run low-light stages or pair their long gun with night vision devices in a training or operational context.
- Your HS510C gives you a solar-backed, shake-activated, titanium-protected red dot on your long gun with a large window and up to 50,000 hours of battery life, so your carbine, PCC, or shotgun is always ready without checking power levels or manually activating the optic before a stage or a hunt.
The Holosun HS510C Open Reflex Sight (HS510C) with its 65 MOA ring and 2 MOA red dot is a reliable pick for carbine shooters, PCC competitors, and home defense rifle users who want a large-window, solar-backed, titanium-protected open reflex sight with multi-reticle versatility and a quick-release mount ready to run straight out of the box.
| MANUFACTURER | HOLOSUN |