Holosun HS507K-X2 Red Dot Reflex Sight, Black Anodized

Holosun HS507K-X2 Red Dot Reflex Sight is a compact, non-magnified pistol optic designed specifically for subcompact and concealed-carry handguns. This red dot sight provides a fast, intuitive aiming reference in a lightweight, low-profile form factor suited for everyday carry and compact slide dimensions.

Manufactured by Holosun, the HS507K-X2 addresses the need for a durable micro-optic that maintains reliability and usability on smaller pistols. It features Holosun’s Multi-Reticle System, allowing users to select between a dot or circle-dot reticle without requiring re-zeroing. The optic is commonly used on slim and subcompact pistols and is noted as a direct-fit option for certain platforms such as the P365X/XL, while other slides may require an adapter plate.

Key Features

• Multi-Reticle System (MRS): Selectable dot or circle-dot reticle options

• Compact micro-optic design optimized for subcompact and CCW pistols

• Red dot reticle for rapid target acquisition at defensive distances

• Shake Awake technology to conserve battery life when not in use

• Lock Mode to prevent accidental setting changes while holstered

• Side-mounted battery tray allows battery replacement without removing the optic

• 12 brightness settings (10 daylight + 2 night-vision compatible)

• Parallax-free design with unlimited eye relief

• IP67-rated waterproofing and high vibration resistance

Specifications & Construction

• Optic Type: Open reflex pistol sight

• Reticle: Red dot with optional circle-dot (MRS)

• Magnification: 1x

• Viewing Window: Approx. 0.58 × 0.77 in

• Housing Material: 7075-T6 aluminum

• Finish: Black anodized

• Optic Coatings: Multi-coated lenses

• Weight: Approx. 1 oz

• Adjustment Increment: 1 MOA per click (windage & elevation)

• Power Source: User-replaceable battery via side tray

• Battery Life: Rated up to 50,000 hours at specified setting

• Environmental Rating: IP67 waterproof

The combination of low weight, compact window size, and protective housing helps minimize slide mass while maintaining a usable sight picture during recoil.

Compatibility & Intended Use

The Holosun HS507K-X2 is intended for subcompact and concealed-carry pistols. It is a documented direct fit for some handgun models (such as the P365X/XL), while other pistols with a four-boss slide interface may require an adapter plate. Mounting hardware is not included.

Typical applications include:

• Concealed-carry pistols

• Backup or off-duty service handguns

• Subcompact range and qualification pistols

Users should verify slide cut compatibility and any required adapter plates prior to installation.

What’s Included

• Holosun HS507K-X2 Red Dot Reflex Sight

• Manufacturer documentation

The Holosun HS507K-X2 Red Dot Reflex Sight offers a compact, feature-rich optic solution for subcompact handgun users who want fast acquisition, durable construction, and minimal added bulk for concealed-carry and defensive pistol setups.