The following weapons were used in the film The Big Gundown:
Revolvers
Single Action Army
A tribute of nearly all western movies, Single Action Army is the very popular firearm in the movie.
Colt 1851 Navy
A Colt 1851 Navy appeared at the several points.
Smith & Wesson No.3 Russian Model
A Smith & Wesson No.3 Russian Model can be seen in the case.
Smith & Wesson Model 320 Revolving Rifle (Without Stock)
Brockston briefly holds a Smith & Wesson Model 320 Revolving Rifle.
Lefaucheux Model 1858
Baron Von Schulemberg (Gérald Herter) uses a Lefaucheux Model 1858.
Velo-Dog Revolver
A Velo-Dog Revolver can be seen in the case.
Pistols
Remington 1866 Derringer
A Remington 1866 Derringer can be seen in the case.
Rifles
Colt Lightning Rifle
Chet Miller (Ángel del Pozo)'s firearm of choice is a Colt Lightning Rifle.
Spencer 1860 Repeating Rifle
A Spencer 1860 Repeating Rifle was fired by Sarah (Maribel Martín) at the one point.
Winchester Model 1894
A Winchester Model 1894s were used by several characters.
Winchester Model 1892 Saddle Ring Carbine
Numerous ranchers were armed with the Winchester Model 1892 Saddle Ring Carbines.
Evans Repeating Rifle
An Evans Repeating Rifle can be seen in the hands of Brockston
Shotguns
Beretta Model 412
Numerous Beretta Model 412 is seen in the armory of Mexican Police station.