Night Sight Marine Corps Sgt. Paul Guillen uses his night vision goggles during a weapons and instructor course final exercise at the Chocolate Mountain Aerial Gunnery Range in California, April 27, 2017. Guillen is a crew chief assigned to Marine Light Attack Helicopter Squadron 169. Marine Corps photo by Cpl. AaronJames B. Vinculado SHARE: Download: Full Size (1.65 MB) Credit: Cpl. AaronJames Vinculado VIRIN: 170427-M-FS068-1026C.JPG Photo Gallery