In addition to the standard red version, the Holosun 507K X2 is now being offered with a green reticle— HE507K-GR X2 —providing a high-contrast aiming point that is equally suited for rapid ...

The 507k and 407k take durability to a new level with titanium housing and IP67 certified waterproofing. This powerful unit comes with all of the high quality features found on other Holosun ...