2. The SCS pistol optic
Today, Holosun pushes the envelope of red dot technology!
"We would like to introduce the SCS (Solar Charging Sight). This product brings the next level of our Solar Failsafe system to the red dot user. Being an auto-adjusting only system, it uses multiple sensors to be able to accurately adjust the brightness level of the reticle to the correct setting, even when using flashlights! Furthermore, the system does not require the user to replace batteries. It uses the ambient light not only to power itself, but maintains charge to an internal battery for when low-light situations arise. All this is uniquely fitted in an ultra low system that is not only compatible with standard height BUIS, but is uniquely shaped to direct fit to an exisiting manufacturer's slide profile and still offer features you expect from Holosun such as M.R.S. (Multi Reticle System) in a Grade 5 titanium housing.
As pictured, this model was made specific to interface with the Glock MOS slide profile."
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TLDR: It's powered by the sun and has an internal, non removable battery that is also charged by the sun for when it's dark out. It's very low profile and you can use standard sights as BUIS. The one featured in the image interfaces with the Glock MOS system.