Israel Military Industries UZI
A nine millimetre Uzi sub-machine gun from Israel.
Sub-machine guns are weapons that shoot handgun caliber bullets in full auto. They have a shorter range and are less powerful than assault rifles, but are far easier to control in full auto and handier overall especially for close proximity fighting like the jungle warfare kind.
The SOG used Uzis for the most part on parachute-jumping missions because of its small size.
Despite being so compact, Uzis sport a standard-size barrel and, considering its period, could shoot with extraordinary accuracy.
If needed, it could be aimed with one hand, and with the magazine located inside the handle it could be reloaded very easily even in the dark. It was an extremely reliable weapon even in the worst of conditions, be it in the presence of sand, mud, rain or extreme cold. Not even being submerged in water could stop it and kept working even without clearing the chamber before opening fire.
Although nowadays its open-bolt technology is outdated, there is still no other submachine gun as successful as the Uzi was in so many countries across the world.