Holosun - Enclosed Collimator HE515GT - Titanium - Killflash - QD - Picatinny - Flipback - HE515GT-RD

The Holosun 515GT is a sealed red dot sight with a tubular design and a 20 mm diameter reticle window. Thanks to its sealed construction, the emitter and lenses are protected from dust, mud, and water, ensuring reliable performance in harsh terrain and weather conditions.

Clear image and parallax minimized to an imperceptible level

The optical system of this model is based on a 20 mm diameter lens, which provides a bright and clear image thanks to multi-layer FMC anti-reflective coatings that ensure optimal light transmission and high contrast. Parallax has been minimized to an imperceptible level in the collimator. This, combined with an unlimited eye relief, ensures high comfort and enables intuitive binocular aiming.

Transparent flip-back protective covers keep the outer lenses clean and protect them from dirt, scratches, and rain. Additionally, the set includes a removable honeycomb-structured sunshade that effectively eliminates light reflections from the front sight lens, preventing the shooter’s position from being revealed.

Stable power supply and energy-saving system

The device is powered by a single CR2032 lithium battery, which provides up to 50,000 hours of operation. Energy-saving is ensured by Shake Awake technology, which automatically turns off the reticle illumination during inactivity and immediately restores it to the last-used mode upon detecting movement, eliminating the need for manual control of the sight during use.

MRS System and Reticle Illumination and Position Adjustment

The HE515GT-RD model is equipped with the MRS system. It allows the user to choose between two red reticles—a 2 MOA dot or a 65 MOA dot in a circle—without losing zero. The shooter has 12 brightness levels at their disposal, consisting of 8 daytime modes and 4 modes designed for use with night vision devices. The adjustment range of the reticle in the vertical and horizontal planes is +/- 50 MOA with a click value of 0.5 MOA.

Titanium body, high durability, and stable optical axis

The device’s body is made of titanium. This ensures exceptional mechanical strength and corrosion resistance while maintaining a low weight. The design features an IPX8 waterproof rating, allowing the red dot sight to remain functional after submersion in water, and shock resistance up to 1000G enables trouble-free use on high-recoil firearms.

The red dot sight remains fully functional in extreme operating temperatures ranging from -40°C to 60°C. The included mount allows for stable mounting of the red dot sight on a Picatinny rail, raising the sight’s optical axis to a height of 36 mm above the rail. This dimension defines the mount profile as Absolute Co-witness, in which the red dot aligns with standard-height mechanical sights.

Features:

• Enclosed red dot sight with a 20 mm tube diameter
• Durable housing made of lightweight titanium
• Includes transparent flip-back lens covers
• Removable Killflash sunshade to eliminate light reflections
• MRS system allowing selection of a 2 MOA dot or a 65 MOA circle
• Powered by a high-capacity CR2032 lithium battery providing up to 50,000 hours of operation
• Battery-saving Shake Awake system with memory of the last used mode
• 12 brightness levels for the red dot, including 4 optimized for night vision
• Parallax minimized to an imperceptible level
• IPX8 waterproof rating ensuring full water resistance when submerged
• High resistance to vibrations and shocks up to 1000 G
• Stable Picatinny rail mount providing an Absolute Co-witness optical axis

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