Holosun Open Reflex Optical Sight HS507K X2/HE507K-GR X2 Narcotic Field Tests In this case it means

In this case it means a more powerful light

increasing its customization options and making it adaptable to a wide range of tasks

Fade and wrinkle resistant 100% ring spun cotton knit

PAPER: Gray

Holosun Open Reflex Optical Sight HS507K X2/HE507K-GR X2 Narcotic Field Tests In this case it meansThe HS507K X2 HE507K GR X2 is an open reflex optical sight designed for subcompact pistol applications. The HS507K X2 HE507K GR X2 improves on previous the version by adding Lock Mode which was first introduced in our 2018 LEM pistol optic models. Lock Mode, when activated, locks the buttons preventing inadvertent setting changes. Additional features include Holosuns Green Red Super LED with up to 50k hour battery life, Multi Reticle System, and Shake