MOS 45K Armament Repairer
The armament repairer supervises and performs direct/general support (DS/GS) and depot level maintenance/repairs on the mechanisms/systems of tank turrets/weapons, fighting vehicles, towed/self-propelled artillery, small arms and other infantry weapons. Duties for MOS 45K at each skill level are:
a. Major duties.
(1) MOSC 45K1O. Performs ordnance armament DS/GS maintenance. Assists in correcting malfunctions on the mechanisms/systems of tank turrets, armament weapons, and cupolas.
(2) MOSC 45K2O. Perform duties in preceding skill level, supervises lower grade soldiers and provides technical guidance to the soldiers in the accomplishment of their duties. Repairs turret mechanisms and tank weapons. Troubleshoots and corrects malfunctions. Provides technical advice and assists in assembling and disassembling the mechanisms and systems of turrets, cupolas, tank weapons, and self-propelled artillery.
(3) MOSC 45K3O. Performs duties in preceding skill levels, performs small arms/artillery repairer (MOS 45B) duties, performs fire control repairer (MOS 45G) duties, supervises lower grade soldiers and provides technical guidance to the soldiers in the accomplishment of their duties. Inspects and troubleshoots fire control system components, towed artillery fire control systems, self-propelled artillery fire control systems, tank fire control systems, towed artillery armament systems, self-propelled artillery armament systems, fighting vehicle armament systems, tank armament systems, small arms weapons. Classifies equipment.
(4) MOSC 45K4O. Perform duties in preceding skill levels, supervises lower grade soldiers and provides technical guidance to the soldiers in the accomplishment of their duties. Performs as senior advisor and supervisor of ordnance maintenance and repair crews engaged in DS/GS and depot maintenance on all mechanisms and systems of armament/fire control turrets, artillery, and small arms.
b. Qualifications for initial award of MOS.
Armament repairers must possess the following qualifications:
(1) A physical demands rating of very heavy.
(2) A physical profile of 222221.
(3) Normal color vision.
(4) A minimum score of 100 in aptitude area GM.
(5) A security clearance of CONFIDENTIAL.
(6) Formal training (completion of MOS 45K course conducted under the auspices of the U.S. Ordnance Center and School) mandatory.
c. Additional skill identifiers.
(1) K4-M1A2 Tank Operations and Maintenance.
(2) P5-Master Fitness Trainer.
(3) 2S-Battle Staff Operations (skill level 3 and above).
(4) 4A-Reclassification Training.
d. Physical requirements and standards of grade.
Physical requirements and SG relating to each skill level are listed in the following tables:
(1) Table 10-45K-1. Physical requirements.
(2) Table 10-45K-2. Standards of grade TOE/MTOE.
(3) Table 10-45K-3. Standards of grade TDA.






