Look mom...no batteries! - Trijicon RMR Dual Illuminated RM05 1x16 mm 9 MOA Reflex Sights

I run a few optics on some of my weapons...and they are all battery powered. Have had a couple of them fail prematurely (even though I change out the batteries every year) while at the range, and luckily had a spare battery on hand to get the optic back up and running. Trijicon offers this RMR optic that does not take a battery...instead it runs off ambient light when there is some, and tritium when there is no ambient light. The dot is always crisp and easily acknowledgeable despite the lighting conditions and backdrop. Makes for a very reliable setup that does not have any electronics to fail.

Cons- does not ship with any metric screws for mounting. And unfortunately not available in the more compact RMRc footprint. Otherwise a fantastic optic!