The weapons seen in this 1954 movie are:
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M20 "Super Bazooka" (3.5" Rocket) Used by Sgt. Ben Peterson (James Whitmore ) and Major 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. Peterson wears an M1 Flamethrower accompanying Pat and Graham into the nest.
Error creating thumbnail: File missing Schematical drawing of M1A1 Flamethrower Error creating thumbnail: File missing Peterson (right) wearing the flamethrower as the group enters the nest. Error creating thumbnail: File missing Peterson roasts a giant ant that comes out of the wall. Error creating thumbnail: File missing Peterson prepares to torch the queen's chamber. After his Colt Official Police 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. Error creating thumbnail: File missing Graham firing an M1928 Thompson with his eyes shut at the film's climax. The soldiers at the film's climax use these rifles in addition to the Thompson, several fitted with grenade launchers.
Error creating thumbnail: File missing M1 Garand semiautomatic Rifle with leather M1917 sling - .30-06 Error creating thumbnail: File missing Two soldiers take aim, one with an M1 Garand. Error creating thumbnail: File missing More Garands including two grenade-firing ones. Colt Official Police Doomed redshirt Trooper Ed Blackburn (Chris Drake ) uses a Colt Official Police revolver. Later, Trooper Sgt. Ben Peterson (James Whitmore ) uses a Colt Official Police to shoot at a giant ant.
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. 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.
Colt Detective Special A Colt Detective Special is found by Sgt. Peterson in the destroyed camper at the beginning of the movie. FBI Agent Robert Graham (James Arness ) shoots at an ant with a Colt Detective Special of his own later.
Error creating thumbnail: File missing The Colt Detective Special lying on the floor. Error creating thumbnail: File missing Sliding a pencil into the barrel, Peterson picks the Colt Detective Special up to examine it. 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. 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. 
