US Cartridge, 120mm Illuminating, M983




This cartridge is an infrared illuminant round developed for use in the M120 and M121 120mm mortar system. It is intended for use with Night Vision Devices (NVD’s) to reduce friendly force’s exposure to the enemy.

The complete round consists of a fuze, propellant charge, fin assembly, ignition cartridge, body tube, tail cone assembly, illuminant candle, and parachute assembly. The ignition cartridge has a percussion primer and is assembled to the end of the fin assembly. The propellant charge is contained in four horseshoe-shaped felt fiber containers and assembled around the fin assembly shaft.

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TM 43-0001-28, Artillery Ammunition (chg 11, 2003)