HOLOSUN HS510C-FDE-R Open Reflex Sight — Red Multi Reticle, Solar Power, Shake Awake

Overview

The HOLOSUN HS510C-FDE-R is an open reflex sight designed for rapid target acquisition without sacrificing situational awareness. Its open frame provides a wide sight picture, helping you keep track of your surroundings while you focus on the target. Built for reliability, it combines smart reticle options with a streamlined housing that minimizes visual obstruction during fast engagements.

Three Reticle Options at a Push

• 65 MOA circle with a 2 MOA dot
• 2 MOA dot only
• 65 MOA ring only

All reticles share a single LED, which means you can switch between modes without re‑zeroing, preserving point of aim as you adapt to your environment and target distance.

Powering, Power Savings, and Reliability

Designed for varied lighting, the HS510C blends a solar cell with a high capacity CR2032 battery to deliver dual power sources. In bright conditions, the solar cell can contribute power, while the back up battery ensures operation when light is limited.

Solar Failsafe and Battery Backup

• Solar cell supports ongoing operation under ample light
• CR2032 battery provides reliable backup when needed

Design, Precision, and Ease of Use

With parallax-free optics and unlimited eye relief, you gain a natural, fast sight picture that accommodates varied shooting stances. The push‑button controls reduce visual clutter and simplify reticle changes while mounted, so you can stay focused on the target.

Smart Features for Real World Shooting

• Motion Sensor with Shake Awake can wake the sight on movement or you can keep it on continuously
• Compact, streamlined housing supports versatile mounting across platforms

Practical Scenarios

Whether you are practicing at the range, competing, or training in field conditions, the HS510C-FDE-R offers a flexible sighting solution. The wide field of view, multiple reticle options, and dual power sources are designed to support quick target tracking, precise aiming, and reliable operation across lighting shifts. The Shake Awake feature adds convenience during sessions, ensuring the sight is ready when you are, without forcing a constant power draw.