Burris 300213 AR-Tripler 3X Generation 2 Sight (Black)
The AR-Tripler Sight is a dot sight to add 3x magnification when you need it or flip up when you don't. Adjustable to center the dot in the scope, it mounts ideally with the AR-Pivot Ring, but also with other 30mm fixed mounts. It features excellent coated optical lenses, and wire tethers to prevent loss of caps. This sight is waterproof.