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M19 mortar
The M19 Mortar is a light, smoothbore, muzzle-loading, high-angle-of-fire weapon for light infantry support developed and produced in the United States.
It has been made obsolete and supplanted by the more modern 60 mm M224 Mortar, which has a much longer range and improved ammunition.
==Description==
The original M19 just had a simple spade-like M1 baseplate, leaving the elevation and traverse free for the firer. This of course was found to be too inaccurate, and the infantry initially refused the M19. A new mount, the M5, was developed, which used a conventional baseplate and bipod with elevation and traverse adjustment. This gave the M19 better accuracy, but made it heavier than the M2 Mortar with less range.
The M19 fired the same ammunition used in the M2 mortar, which it would replace. The 60 mm mortar is used by the infantry to lob high-explosive and white phosphorus smoke shells at well-protected hostile locations. The weapon can also fire illumination rounds to light up the battlefield at night. The primary difference between the M2 and M19 was that the M2 was drop-fire only while the M19 could be drop-fired or a round loaded and then fired by a lever-like trigger at the base of the tube.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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