Holosun 508T-X2

This product belongs to a higher-end category within the Holosun spectrum: optics intended for very hard duty use. The 508T-X2 has an IPX rating (water resistance and others) of 8, higher than the 67 of most Holosun pistol red dot sights. The T in its name indicates housing made of titanium instead of the usual aluminium.

The “shake awake” feature means the device will power off automatically after a few minutes of not detecting movement, and will power on immediately after detecting the slightest movement or vibration. However, we recommend turning off the device when not in use.

It comes with a detachable Picatinny mount adequate for high rail weapons like shotguns or the AK , G36 or MP5 platforms, as well as all the hardware necessary for its installation. We recommend applying Loctite 243 on all the screws and direct mount to a slide milled with the specific footprint of this optic (no adapter plate). The 508T-X2 shares the same footprint as the Trijicon RMR.

How does the solar mode work?
The solar panel doesn’t work as most people think.

When on solar mode, the brightness of the dot automatically adjusts to ambient light conditions. When not enough solar energy to power the reticle, the device taps into the battery to compensate. In practice, we find solar mode to always produce a very weak dot, so we recommend running the device always on battery mode.

What are the differences between the 507C-X2 and the 508T-X2?
The differences are:
-    The 507C-X2 has an IPX rating of 67, the 508T-X2 has 8
-    The 507C-X2 is made of aluminium, the 508T-X2 of titanium
-    The 507C-X2 has flashy markings with Holosun’s logo, the 508T-X2’s markings are dark
-    The 507C-X2 has a curved upper edge, the 508T-X2 has a flat top

What are the differences between the 508T and the 508T-X2?
The 508T was released in 2019. At the beginning of 2020, Holosun released the second generation, named V2. The X2 is the third generation of the device, released months after the V2.
The differences are:
-    The V2 and X2 versions have a side battery compartment instead of a bottom compartment, in order to accommodate the CR1632 battery.
-    The first gen had small buttons in a horizontal layout, the V2 has larger buttons placed vertically, the X2 went back to the original layout.
-    The first gen had a curved upper top and thus a larger window. All other gens have a flat top design with a slightly smaller window but greater structural integrity.
-    The X2 introduced a button lock-out feature to prevent accidentally pressing the buttons.
-    The latest generations have better glass clarity
-    The latest generations have less optic distortion (fish-eye effect) especially along the edges
-    The latest generations have more reticle options