Ghostbusters (1984)

The following weapons appear in the film Ghostbusters:

M16A1 Rifle

Near the climax of the film, Army National Guard soldiers sent to provide crowd control and security can be seen armed with M16A1 rifles. Sharp eyes can also spot a few MGC replica M16's fitted with A1-style flash hiders supplimenting the real M16A1's.

M16A1 5.56x45mm

As Ray Stantz (Dan Aykroyd, Peter Venkman (Bill Murray) and the rest of the Ghostbusters approach the building, an Army National Guard soldier is holding an M16A1 rifle.

An Army National Guard soldier cheers the Ghostbusters while armed with an M16A1

MGC M16 replica

An Army National Guard soldier armed with an MGC M16 replica (note fake forward assist)

The wide shot shows the prominent forward assist on the MGC M16 replica.

M60 Machine Gun

Near the climax of the film, at least two Army National Guard soldiers can be seen holding M60 machine guns.

M60 machine gun 7.62x51mm NATO

An Army National Guard soldier on the right behind the police officer wielding an M60 machine gun

Unknown Revolver

When the Ghostbusters are brought to meet with the Mayor of New York City (David Margulies), an NYPD officer can be seen with a holstered revolver of unknown make or model.

An NYPD officer escorts the Ghostbusters to meet the Mayor of New York City with a holstered revolver of unknown make or model