Holosun HE509T-GR X2 Enclosed Reflex Sight — 2 MOA / 32 MOA

Holosun HE509T-GR X2 Enclosed Pistol Reflex Sight is a compact, enclosed handgun optic engineered to deliver a durable and protected aiming solution for pistol-mounted use. This enclosed reflex sight features a selectable 2 MOA green dot and a 32 MOA green circle, allowing shooters to tailor the reticle for fast acquisition or precise shot placement.

The HE509T-GR X2 is designed to meet the demands of duty, range, and everyday-carry pistol setups where durability and reliability are critical. Its fully enclosed window protects the emitter from debris, moisture, and environmental interference while maintaining a low-profile footprint suitable for slide-mounted applications. Holosun’s Multi-Reticle System and power-management technologies provide flexibility and extended service life for consistent readiness.

Key Features

• Enclosed pistol reflex sight for enhanced emitter protection

• Multi-Reticle System with selectable 2 MOA dot, 32 MOA circle, or circle-dot

• Super Green LED with up to 50,000 hours of reported runtime

• 12 brightness settings, including 2 night-vision compatible levels

• Titanium housing for strength, reduced weight, and corrosion resistance

• Shake Awake technology to conserve battery during inactivity

• Solar Failsafe provides auxiliary power input in bright conditions

• X2 Lock Mode prevents accidental brightness or reticle changes

• Improved glass clarity over earlier generations

Specifications & Construction

The HE509T-GR X2 features a titanium housing with a black finish, providing durability suitable for repeated slide cycling and daily handling. The enclosed viewing window measures approximately 0.66″ x 0.90″. Windage and elevation adjustments are made in 1 MOA increments. Overall length is approximately 1.6 inches, with a listed weight of about 1.72 ounces, keeping the optic compact and well balanced on a handgun slide. The unit is nitrogen-purged and described as waterproof for reliable performance in adverse conditions.

Compatibility & Intended Use

This optic is intended for slide-mounted pistol use on compatible handgun platforms. It supports RMR/SRO standard footprints via the included 509T adapter plate. The adapter plate is not compatible with Zev or Shadow Systems-style slide interfaces that use threaded bosses. Typical applications include duty pistols, service handguns, range pistols, and carry-capable setups where an enclosed reflex sight is preferred for added protection and reliability.

What’s Included

• Holosun HE509T-GR X2 enclosed pistol reflex sight

• 509T adapter plate for RMR/SRO footprint compatibility

• Mounting hardware (as supplied by manufacturer)

• Adjustment tool

• User documentation