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a. The M190 subcaliber launcher with M73 subcaliber rocket can be used against all solid stationary or moving targets. Together they can be used in all training phases, from fixed firing live to simulated situations, such as a "trainfire" type operation.
b. The M190 subcaliber launcher is a tubular, telescoping, smooth-bore, openbreech weapon.
c. The M73 subcaliber rocket consists of a spotting head, a motor closure, a rocket motor and an igniter assembly. The spotting head contains the same flash composition used in the M80 explosive simulator (TM 9-1370-203-34&P) to assist in locating the fired rocket. The forward end of the motor closure provides a cavity that contains a base detonating fuze and a primer. The motor case contains tubular grains or propellant. The rocket is stabilized by six molded, plastic fins.
The external appearance of the M190 subcaliber is almost identical to the M72A1. The M190 differs from the tactical launcher M72A1 by having a subcaliber rocket and a quick release primer housing door to simplify reloading. The used M72A1 launcher is modified by use of a conversion kit to produce the M190 subcaliber launcher.
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