The Holosun 507C X3 is a 1x open pistol sight that projects a green Multi-Reticle System in a Flat Dark Earth housing, so it matches tan and FDE builds. Three reticle modes are built in: a 2 MOA dot, a 32 MOA circle, or a circle-dot showing both together, so you can tailor the sight to target shooting, defensive use or fast close-range work. A forward-facing light sensor and Solar Failsafe adjust brightness automatically, and you also get 8 daylight and 4 night vision brightness settings. Shake Awake keeps the optic ready for use, and the side-loading CR1632 tray lets you change the battery while the sight stays on the slide.

The housing is made of 7075-T6 aluminum and carries an IP67 waterproof rating that protects it from water. It sits directly on pistols cut for the RMR footprint, so you don't need an adapter plate on those slides. Adjustments are 1 MOA per click with 30 MOA of travel, which gives you room to zero the dot to your pistol. The window measures 0.91" x 0.67", and the battery runs up to 100,000 hours at brightness setting 6.

• Brand: Holosun
• Model: 507C X3 Green FDE
• Reticle: Green Multi-Reticle System, 2 MOA Dot / 32 MOA Circle / Circle-Dot
• Optic Footprint: RMR
• Battery Life: Up to 100,000 Hours (Setting 6), CR1632 Side-Loading Tray
• Housing Material: 7075-T6 Aluminum
• Waterproof Rating: IP67
• Finish: FDE