The Holosun 507K X2 is a compact open-emitter red dot designed specifically for concealed carry pistols and slimline platforms. It features Holosun’s Multi-Reticle System (MRS), allowing the user to select between a 2 MOA dot, a 32 MOA circle, or a combination of both. Powered by the Holosun Super LED, the sight offers up to 50,000 hours of runtime on a single CR1632 battery. Shake Awake and Lock Mode are included to conserve power and prevent accidental setting changes during carry or use.

The housing is machined from 7075-T6 aluminum and hardcoat anodized for durability while maintaining a compact, lightweight profile. The optic is waterproof to IP67 standards and built for EDC-focused performance. It uses Holosun’s K footprint, a modified RMSc pattern that fits a variety of slimline pistol slides, including direct fitment to the SIG P365X/XL without adapters. Note that the overall base dimensions may not be compatible with all RMSc-milled slides.

• Reticle: 2 MOA dot, 32 MOA circle, or both (red)

• Brightness Settings: 10 daylight, 2 night vision compatible

• Power Source: CR1632 battery (side-loading)

• Battery Life: Up to 50,000 hours (dot only, setting 6)

• Power Features: Shake Awake, Lock Mode

• Housing Material: 7075-T6 aluminum

• Lens Coating: Multilayer reflective

• Eye Relief: Unlimited

• Mounting Footprint: Holosun K

• Water Resistance: IP67

• Window Size: 0.58" × 0.77"

• Weight: 1 oz