Holosun 515GT 20mm Red Dot Sight — 2 MOA/65 MOA

Holosun 515GT 20 mm red dot sight is a micro optic designed to provide a selectable 2 MOA dot or a 65 MOA circle-dot reticle for rapid target acquisition. The sight is built for use on rifles and carbines and mounts to 1913 Picatinny rails with a quick-detach mount.

This optic solves the need for a compact, durable non-magnified aiming device that offers both a precise aiming point and a larger aiming reference for speed. It is intended for hard-use rifle and carbine applications, sporting use, and general-purpose setups where a low-profile, 1x optic is required. The sight’s Multi-Reticle System (MRS) and Shake Awake functionality simplify on/off management while preserving battery life.

• Multi-Reticle System: switchable 2 MOA dot or 65 MOA circle-dot reticle for precision or speed.
• Dot and adjustment: 2 MOA primary dot; adjustment size 0.50 MOA per click for windage/elevation.
• Optic size and weight: length approximately 3.27″ and weight approximately 4.33 oz.
• Optical: 1x magnification with a 20 mm objective and multi-layer lens coatings.
• Power and controls: side-mounted CR2032 battery; Shake Awake power-saving function recalled last setting on movement.
• Construction: CNC-machined titanium housing and removable clear flip-up lens covers; includes quick-detach mount and non-obstructing lens accessories.
• Environmental: described as waterproof and dustproof (product literature also references an IP68 rating) and designed for hard-use conditions.

Specifications & construction — materials and dimensions are based on supplied product data. The housing is titanium and the unit includes multi-layer coated optics. Length is listed as 3.27″ and weight as 4.33 oz. Power is provided by a CR2032 battery in a side-mounted tray. Windage and elevation are adjustable; objective diameter is 20 mm. The optic is non-magnified (1x) and provides unlimited eye relief.

Compatibility & intended use — the sight fits 1913 Picatinny rails and is suitable for rifles and carbines as a primary red dot or as a low-profile optic in combination with backup sights. Typical setups include patrol or duty rifles, sporting rifles, and range/training firearms where a compact 1x aiming solution is desired.

This description uses the available product information to summarize key functions, features, and measurable specifications for buyers evaluating non-magnified optics for rifle platforms.