This is a Grey Ghost Gear Pouch known as the Slim Medical Pouch, model 4002-2.
This Slim Medical Pouch is designed to take up only two modular webbing channels on your vest or other MOLLE compatible platform. As it's name states" it has a slim profile and is specifically designed to carry your most important trauma supplies. Dual zippers running the full length of the pouch" combined with a large pull tab" allow quick access to the contents inside the pouch. On the inside is plenty of room for essential trauma items as well as a flat pocket and elastic bands to secure various items. A bungee retainer system on the front of the pouch can secure a tourniquet and two rows of modular webbing on either side can hold a pair of trauma shears or other important items.
Features:
Constructed of 500D Cordura Nylon
Attaches to any MOLLE/PALS style webbing with the two included MALICE Clips
Dimensions are 5x4x2.5"