US Military Black ECWCS Balaclava Bottle M-4 is an ammunition pouch

M-4 is an ammunition pouch designed to carry a single M4 magazine within the Air Warrior load carriage system

or additional loads

military personnel as part of the Extended Cold Weather Clothing System

The US Military ALICE Pack Frame is a rigid external frame designed to support medium and large ALICE rucksacks

Issued to Danish military personnel as part of field load-bearing equipment systems

US Military Black ECWCS Balaclava Bottle M-4 is an ammunition pouchThe US Military black ECWCS balaclava is a cold weather head covering designed to provide insulation and moisture management in low temperature environments. It is worn under helmets or as part of a layered cold weather clothing system. Color: Black Material: Polyester and spandex blend Function: Thermal insulation and moisture wicking for cold weather operations Issued to U. S. military personnel as part of the Extended Cold Weather Clothing System.