This is the Holosun HS507K X2 MRS 2 MOA dot open reflex sight. It features a 32 MOA circle.

Available in Red dot or Green dot.

HS507K X2 MRS is packed with Holosun innovations:

• Shake Awake
• Super LED with up to 50k hour battery life
• Multilayer Reflective Glass
• 12 Brightness settings: 10 daylight options and 2 night-vision compatible options
• Parallax-free & unlimited eye relief

Comes with the following:

• Multi Tool
• User Manual
• Lens Cloth