M199 assault rifle

Perhaps the most well-recognized weapon in the pre-War U.S. Military arsenal, the M199 earned its nickname "The Backtalker" from the unusual report the firing mechanism makes as it ejects a spent shell. Firing standard 5.56mm rounds, the M199 was the official infantry weapon of the US Army and part of the M Series of weapons.

Appearances
The M199 doesn't technically appear in any game, and is mentioned in the Museum of Technology in Fallout 3. In the game itself, the default assault rifle model is the R91 assault rifle, a weapon used by the National Guard.

Штурмовая винтовка М199