The following weapons were used in the film The Stuff:
Smith & Wesson Model 19
A Stuff-possessed state trooper (Jery Hewitt) who pulls the main characters over on the highway, impeding their escape, and attempts to arrest them by pulling a Smith & Wesson Model 19 which is difficult to see since the scene is filmed at night.
Smith & Wesson Model 19 Combat Magnum - .357 magnum
The state trooper points his revolver at Rutherford.
Picture brightened to show revolver detail.
Smith & Wesson Model 57
When the militia storm the factory, the gate guard (Harvey Waldman) uses a Smith & Wesson Model 57 to shoot one of Colonel Spears' men who was disguised as a trucker before he himself is killed by Spears.
Smith & Wesson Model 57 - .41 Magnum
The guard at the Stuff plant whips his S&W around after killing the truck driver...
...albeit too late as he is cut down by Colonel Spears' Thompson.
When confronting Fletcher and another businessman, Evans, at the end of the film, Rutherford pulls a Walther P38 on them. He uses it to force them to eat the Stuff as punishment for unleashing it on the world.
Walther P38 pistol World War II date of production
"You said you brought another friend." "Yeah. Him."
Closeup of the gun as Rutherford fires a warning shot into Fletcher's desk.
Fletcher is made to eat his own product at gunpoint.
Thompson Submachine Gun
The militia headed by the slightly unbent Colonel Spears (Paul Sorvino) all carry Thompson Submachine Guns. They have the classic foregrip but with standard magazines and are all stockless.
M1928A1 Thompson with 30-round magazine and early 'simplified' rear sight that would be adopted for the M1 Thompson - .45 ACP
"I kinda like the sight of blood...but this is disgusting!"
Colonel Spears looks down at a killed "Stuffie."
MGC Replica M16
A few of the militia wield MGC Replica M16's as well. As well, inside Spears' house there are a pair of "crisscrossed" mounted M16's on display, as one would display swords.
ModelGun Corp Replica M16 non firing rifle, used in many films as a stand in for the real M16 Rifle
The M16's mounted on the wall in Spears' home.
A militiaman wielding an MGC replica M16 storms up the factory steps.
Two militiamen holding MGC replica M16's inside the factory.
Rutherford uses an MGC replica M16 to shoot the power cable in the radio station.