HS507K X2 Gas Mask C701 4 when used with a

4 when used with a 12

and a magnifying glass so you can get a closer look in between

01 certified and comes with a lifetime warranty for manufacturer defect

and iron sights - all in focus

and a rigid base to prevent sagging

HS507K X2 Gas Mask C701 4 when used with aThe sub compact pistol sized Holosun HS507K X2 Red Dot Sight provides a large field of view paired with useful features that will help you stay on target while greatly reducing target acquisition time. Made for carry pistols, this optic offers a Lock Mode that prevents unintentional button presses while the optic is holstered and a side access battery tray, which allows the operator to change the battery without removing the optic from the firearm.