The Primary Arms CLx Enclosed Reflex Sight delivers reliable red dot performance in a compact, sealed package built for carry and duty use. The fully enclosed emitter housing protects the dot from dust, rain, and debris that can disrupt open-emitter reflex sights, while fully multi-coated lenses maximize light transmission for a crisp, clear sight picture in any lighting condition. A 3 MOA red dot with 10 brightness settings and Red Dot Bright illumination technology ensures fast target acquisition across all lighting conditions. AutoLive motion-sensing technology automatically powers the dot on at the slightest movement and off during periods of stillness to maximize total runtime. The side-loading power source tray allows quick swaps without removing the optic or disturbing zero. Built from hardcoat anodized 6061-T6 aluminum, the CLx is waterproof and shockproof, weighing just 0.98 oz. An integrated backup rear iron sight allows co-witnessing or iron sight use if needed. Compatible with Shield RMSc milled slides and adapter plates. Backed by Primary Arms' Limited Lifetime Warranty. EXPORT CONTROLLED ITEMS: These items are controlled for export and may require an export license from the U.S. Government. Buyer acknowledges that Buyer is responsible for obtaining all export licensing authorizations and filing all export documents prior to export from the United States.