This red dot uses the Trijicon RMR footprint standard.

Essential info

• Footprint standard: Trijicon RMR footprint standard
• Reticle: 2 MOA dot & 32 MOA circle [red]
• Window size [height x width]: 22.1 x 27.9 mm [0.87 x 1.1"]
• Total dimensions [length x width x height]: 41.1 x 27.2 x 24.1 mm [1.62 x 1.07 x 0.95"]

Holosun Ronin HS507Comp is an open reflex sight built for competition, duty, and real-world performance. Developed in collaboration with Tu Lam of Ronin Tactics, it uses the industry-standard Trijicon RMR footprint, making it highly compatible with a wide variety of full-size pistols, rifles, and shotguns. The oversized window design delivers rapid target acquisition and seamless reticle tracking when it matters most.

Why choose Holosun Ronin HS507Comp?

This optic brings together a rugged aluminum housing, an exceptionally large field of view, and a streamlined multi-reticle system. It is specifically built to stay clear and fast, providing shooters with an uncompromised sight picture during dynamic shooting or competition stages.

Competition-sized window with RMR footprint

Built on the widely accepted RMR footprint, the Ronin HS507Comp is easy to mount on most optics-ready handguns. Unlike standard micro optics, it features a massive open viewing window that is significantly larger than typical red dots. This expanded field of view helps you find the dot faster on the draw and track it easily during recoil.

Streamlined Multi-Reticle System (MRS)

The optic features Holosun’s flexible reticle system, allowing you to choose the best setup for your shooting style:

• 2 MOA dot
• 32 MOA circle
• 2 MOA dot + 32 MOA circle

This approach means you can keep things simple with a crisp dot for precise shots, use a large circle for incredibly fast target pickup, or select a combined circle-dot setup for the best of both worlds.

Shake Awake technology

A highly practical feature is the integrated Shake Awake technology. The optic automatically powers down when completely motionless to save battery life, but instantly activates the LED upon the slightest movement. This ensures the optic is always ready when you draw your firearm without needing to press any buttons.

Side-mounted battery tray

The Ronin HS507Comp features a side-mounted battery tray, which is a major convenience for everyday use and maintenance. When it is time to replace the CR1632 battery, you can do it without removing the optic from the pistol, which means you won't lose your zero.

Durable 7075-T6 aluminum housing

Constructed from extremely tough 7075-T6 aluminum, the housing is designed to take a beating while protecting the internal LED and the glass lens. The lens itself offers parallax-free performance with unlimited eye relief, ensuring a clean and precise aiming point with minimal distortion.

In short

If you are looking for a rugged open-emitter red dot with an RMR footprint, a massive viewing window, and an intuitive multi-reticle system, the Holosun Ronin HS507Comp is an exceptional choice designed for both top-tier competitors and serious defensive shooters.