The MARS ITL is a reflex sight designed for use on the Tavor rifle. Some are available for sale in the U.S. The MARS has an integrated laser that is controlled by a fixed umbilical switch attached to the sight. When you press and hold the button on the umbilical the dot shuts off and the laser turns on. Both visible and IR laser models are available. The optic has 4 brightness settings as well as auto adjusts brightness. It runs off a single AA battery.
The MARS sight is a poor choice for use on the AR15 family of weapons. Cowitness is not an option due to the high height of the optic. While it has a quick detach mount, the mount does not return to zero. It has a about 1 MOA dot, and this dot alone can be lost in the field of view of the optic. While it would adjust to ambient lighting condition, it was still dim when on the brightest setting in bright outdoor areas. The aiming dot shuts off when the laser is used, and the laser is only on when the umbilical button is pressed. This cord is non-replaceable and too short to run it to useful locations when this optic is mounted on the top rail of a AR15. Zeroing is easy, but the adjustments are coarse, about 3/4 MOA per click. The laser and red dot are slaved to each other so they share the same zero. This makes zeroing easy, however it is often helpful to have different zeros on lasers and optics.
Run time is short, about 200 hours according to the company. Most people would be better off with a separate laser and optic. I quickly sold the one I owned and I do not recommend the MARS sight for use on the AR15. MARS sights tend to run about $400-900 depending if they are visible laser or IR. Please beware that there are shady individuals selling former military MARS units, and other people trying to sell or trade them for thousands on various gun forums.