Holosun HS515CM 20mm Red Dot Solar

Holosun HS515CM micro red dot sight is an enclosed 20 mm optic designed to provide a selectable 2 MOA center dot or a 65 MOA circle-dot reticle for fast target acquisition on rifles and carbines.

The HS515CM provides a compact aiming solution for sporting and professional rifle platforms. It supplies a primary aiming reticle with a secondary circle option, and uses both solar input and a user-replaceable CR2032 battery to extend operating time and reliability.

• 20 mm objective / 20 mm tube diameter for a compact footprint
• Multi-Reticle System: 2 MOA center dot and 65 MOA circle-dot option
• Dual power: solar panel with CR2032 backup battery; LED efficiency rated up to 50,000 hours
• Multiple brightness settings (manufacturer lists 12 total settings, including night-vision compatible levels)
• Quick-detach mount suitable for 1913 Picatinny rails; lower 1/3 co-witness mounting position available
• Includes flip-up clear lens covers, kill-flash anti-reflection device, and quick-detach two-piece mount
• Compact dimensions: listed length 2.44 in; overall dimension block present in product data
• Weight listed at 7.0 oz
• Parallax-free design with unlimited eye relief
• IP68-rated for water and dust resistance per product text

Specifications & construction
– Housing: aluminum (manufacturer text references aluminum construction; alloy grade varies in supplied data).
– Objective: 20 mm
– Magnification: 1x (non-magnified)
– Reticle sizes: 2 MOA dot; 65 MOA circle-dot option
– Power: Solar input with CR2032 backup battery (battery housed beneath a side-mounted cap for tool-less replacement)
– Brightness: Multiple settings (12 total brightness levels reported, including night-vision compatible levels)
– Mounting: Quick-detach mount for 1913 Picatinny rails / Picatinny/Weaver compatibility noted
– Dimensions (manufacturer-provided block): 3.25 x 4.70 x 3.60 (units as provided); listed length 2.44 in; height 3.25; width 4.70
– Weight: 7.0 oz
– Environmental: IP68 waterproof/dustproof rating reported

Compatibility & intended use
The HS515CM is intended for rifle and carbine applications and is commonly mounted on 1913 Picatinny rails. Typical setups include patrol rifles, AR-style platforms, and range or training rifles where a rugged, low-profile non-magnified optic is preferred. The lower 1/3 co-witness mount position supports use with iron sights or backup sights.

This description is based solely on the supplied product details and presents the optic’s stated features and measurements for selection and comparison.