Question

define what type of weapons were used by us in Vietnam War?

Answer 1

During the war, a wide variety of equipment was used, far too much to cover here. Instead, you will find a few of the more important weapons used during the war and a small description of each. Additionally, the guerilla nature of the Viet Cong troops and the non-uniformity of many North Vietnamese forces makes it difficult to speak of their equipment in comparison to the United States. However, it is important to note that the North Vietnamese and Viet Cong did use advanced weapon systems during the war, even if these weapons were used in a limited way and alongside more traditional weapons. 

AK-47

In 1947, Soviet weapon designer Mikhail Kalashnikov produced a new variant of an automatic assault rifle.

M16

The M16 would become the standard service rifle for U.S. troops during the 1960s, seeing widespread use in Vietnam and largely replacing the M14.

M60

Introduced at the end of the 1950s, the M60 was a belt-fed light machine gun that fired a 7.62 mm round.