Holosun 509T

The Holosun 509T X2 pioneered the enclosed emitter category for pistol red dots, combining the protection of a fully sealed housing with the compact dimensions required for concealed carry. Constructed from Grade 5 titanium—the same material used in aerospace and medical implants—the 509T provides exceptional durability while remaining remarkably lightweight. The enclosed emitter design completely eliminates concerns about mud, rain, snow, or debris blocking the emitter, ensuring the dot appears when you need it most.

The Multi-Reticle System (MRS) allows shooters to select between a precise 2 MOA dot, a fast-acquiring 32 MOA circle, or both simultaneously—adapting to diverse shooting scenarios from precision target engagement to dynamic defensive situations. Holosun's Solar Failsafe provides backup power from ambient light, while Shake Awake automatically activates the sight when motion is detected and conserves battery during storage. Combined, these technologies enable the 50,000-hour CR1632 battery life that defines the Holosun experience.

Compatible with the dedicated 509T footprint (adapter plates available for RMR cuts and direct mill patterns), the 509T X2 features 12 brightness settings including 2 NVD-compatible levels. The side-loading battery tray allows battery changes without removing the sight from the pistol, preserving zero. For shooters demanding enclosed emitter protection without the $600+ pricing of the Aimpoint ACRO, the Holosun 509T delivers exceptional value and performance.