Them!

The weapons seen in this 1954 movie are:

M20 "Super Bazooka" (3.5" Rocket)

Used Sgt. Ben Peterson (James Whitmore) and Maj. Kibbee (Sean McClory)

Error creating thumbnail: File missing

M20 "Super Bazooka" 3.5"

Error creating thumbnail: File missing

Peterson, enjoying himself a little too much, takes aim.

Error creating thumbnail: File missing

Another bazooka used by Kibbee.

M1 Flamethrower

Used by U.S Army Soldiers.

Error creating thumbnail: File missing

Schematical drawing of M1A1 Flamethrower

M1928 Thompson

After his service revolver fails to slay the giant ant, Peterson runs and gets this from his patrol car. Needless to say it packs a bit more of a punch. Agent Graham and several soldiers use them in later scenes as well.

Error creating thumbnail: File missing

M1928A1 Thompson with 30-round magazine and early 'simplified' rear sight that would be adopted for the M1 Thompson - .45 ACP

Error creating thumbnail: File missing

Peterson locks and loads.

Error creating thumbnail: File missing

Peterson gets medieval on the ant's abdomen.

Blackburn's revolver

Doomed redshirt Trooper Ed Blackburn (Chris Drake) uses this revolver.

Error creating thumbnail: File missing

Blackburn unholsters his weapon and turns the light out so the unknown assailant (unknown to him, a giant ant) won't see him emerging from the room.

Error creating thumbnail: File missing

Blackburn prepares to meet his maker courtesy of giant mandibles.

Peterson's revolver

Trooper Sgt. Ben Peterson (James Whitmore) uses this holstered revolver to shoot at a giant ant.

Error creating thumbnail: File missing

Peterson shoots at the ant.

Error creating thumbnail: File missing

Peterson comes to the conclusion his service revolver isn't doing much good.

Graham's revolver

FBI Agent Robert Graham (James Arness) shoots at an ant with a small snub-nosed (?) revolver.

Error creating thumbnail: File missing

Graham is told by an offscreen Dr. Medford to go for the antennae.

Error creating thumbnail: File missing

He does precisely that.

Snub-nosed revolver

A snub-nosed revolver is found by Sgt. Peterson in the destroyed camper at the beginning of the movie.

Error creating thumbnail: File missing

The revolver lying on the floor.

Error creating thumbnail: File missing

Sliding a pencil into the barrel, Peterson picks the revolver up to examine it.

Lever-action rifle

A lever-action rifle, described as a 30-30, is found at Gramps Johnson's store with the barrel bent in half.

Error creating thumbnail: File missing

The rifle lying on the floor.

Error creating thumbnail: File missing

Peterson examines the weapon as Blackburn looks on.

Error creating thumbnail: File missing

Captain Edwards examines the gun.