Near the end of the film, U.S. Army vehicles (primarily M41 Walker Bulldog tanks) can be seen fitted with Browning M2HB heavy machine guns when attacking the Iron Giant (V.O. Vin Diesel), mistakenly believing he was attacking the town of Rockwell.
In addition to the Army, the U.S. Air Force also becomes involved in the attack against the Iron Giant, sending F-86 Sabre fighter jets to try to destroy him, using missiles and built-in Browning M2 Aircraft heavy machine guns to eventually shoot him down, but not destroy him.
FUN TRIVIA FACT: In this scene, and in the other scenes where General Rogard fires his M1911A1 at the Giant, the pistol sound effects are the EXACT same sound effects used in Terminator 2: Judgment Day for the Beretta and Browning pistols in that film.
M1 Garand
An M1 Garand is seen used by a soldier when Rogard's jeep stops after the Iron Giant approaches town from the forest while destroying tanks. All M1's in the film appear to be fitted with M7 rifle grenade launchers.
Winchester Model 70 rifles were used by the two hunters when they killed a deer before Hogarth and the Iron Giant found them, the hunters dropping their rifles and fleeing at the sight of the Iron Giant.
A BB Gun was used by Hogarth Hughes in the beginning of the film while searching for the Iron Giant at the power station. It seems to be a lever-action weapon, possibly a Daisy Red Ryder. Hogarth originally tapes a flashlight to the barrel, but the flashlight disappears when the Iron Giant crushes the weapon underfoot while following Hogarth.
