SPG-9
Overview
 
The SPG-9 Kopye is a Russia
Russia
Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

n tripod-mounted man-portable, 73 millimetre calibre recoilless gun developed by the Soviet Union
Soviet Union
The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....

. It fires fin-stabilised, rocket-assisted HE and HEAT projectiles similar to those fired by the 73 mm 2A28 Grom low pressure gun of the BMP-1
BMP-1
The BMP-1 is a Soviet amphibious tracked infantry fighting vehicle. BMP stands for Boyevaya Mashina Pekhoty 1 , meaning "infantry fighting vehicle". The BMP-1 was the world's first mass-produced infantry fighting vehicle...

 vehicle. It was accepted into service in 1962, replacing the B-10 recoilless rifle
B-10 recoilless rifle
The B-10 recoilless rifle is a Soviet 82 mm smoothbore recoilless rifle. It could be carried on the rear of a BTR-50 armoured personnel carrier. It was a development of the earlier SPG-82, and entered Soviet service during 1954...

.

The projectile is launched from the gun by a small charge, which gives it an initial velocity of between 250 and 400 metres per second.
 
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