Meprolight MCO PRO Closed Emitter Carbine Sight

Shielded from impacts and the elements by a sturdy aluminum cover, the Meprolight MCO PRO Closed Emitter Carbine Sight offers carbine and modern sporting rifle enthusiasts a choice of three reticles, shake-awake activation, and years of runtime. The waterproof and dust-tight sight runs for up to 25,000 hours at mid-power on a single CR2030 battery. Select a 2 MOA red dot, a 68 MOA circle dot, or the Speed Ring circle with three dots arranged vertically. You can choose one of 10 daylight reticle brightness levels or let the ambient light sensor choose for you; there are also two settings compatible with light-intensifying night vision gear.