Holosun 509T X2 Green Dot – Enclosed Reflex Sight

The Holosun 509T X2 Green Dot is an advanced, enclosed reflex sight designed for serious shooters who demand durability, clarity, and innovation. Featuring a crisp green reticle, titanium housing, and a fully enclosed emitter, the 509T X2 stands up to extreme environments while offering rapid target acquisition and uncompromising reliability.

Whether you’re running a duty weapon, competitive setup, or everyday carry handgun, the 509T X2 Green offers superior battery life, solar redundancy, and Holosun's signature Shake Awake and Multi-Reticle technologies.

Key Features

• Titanium housing for enhanced durability and lightweight performance
• Bright and highly visible green reticle for faster sight acquisition
• Multi-Reticle System: 2 MOA dot, 32 MOA circle, or both combined
• Solar Failsafe with automatic brightness adjustment and backup power
• Shake Awake technology activates the optic on movement
• Fully enclosed emitter protects against dust, moisture, and environmental debris
• Side battery tray for convenient replacement without unmounting
• Up to 50,000 hours of battery life (CR1632) on setting 6
• Includes RMR-compatible adapter plate

Specifications

• Reticle: Green 2 MOA Dot and 32 MOA Circle
• Power Source: CR1632 battery + Solar
• Battery Life: Up to 50,000 hours
• Brightness Settings: 10 daylight + 2 night vision
• Housing Material: Titanium
• Dimensions: 1.6 x 1.16 x 1.13 inches
• Weight: 1.72 oz
• Waterproof Rating: IP67
• Mount Type: RMR footprint adapter included

Applications

• Concealed carry pistols with optic-ready slides
• Law enforcement and tactical duty use
• Personal and home defense setups
• Competitive shooting in outdoor or variable lighting
• Harsh environmental or field conditions

Customer Reviews

• ★★★★★ "This green dot is incredibly fast to acquire. Mounted it on my Sig P320 and it’s my favorite pistol optic yet. Super crisp reticle and built like a tank." – Travis W.
• ★★★★★ "The titanium housing and enclosed emitter make this perfect for daily carry. No fog, no glare, and the green reticle is visible even in direct sun." – Amanda L.
• ★★★★☆ "Takes a minute to get used to switching between reticles, but once dialed in, it's dead-on reliable. Excellent quality from Holosun." – Rob K.

Reasons to Buy

• Green reticle offers enhanced visibility in daylight compared to red
• Titanium body ensures longevity under rugged use
• Enclosed emitter prevents optical interference
• Trusted by law enforcement, military, and civilian professionals
• Easy to mount with included RMR adapter and user-friendly battery access
• Backed by Holosun's innovation and quality craftsmanship