Patton is the 1970 biographical war film that stars George C. Scott as the legendary US Army general George S. Patton. The film was filmed principally in Spain, utilizing the military assets of the Spanish Army.
The following weapons were used in the film Patton:
True to his real life counterpart, General George S. Patton (George C. Scott) in the film carries an ivory-gripped Single Action Army in his holster with his initials "GSP" engraved on the grip. When a reporter asks him about his "pearl-handled revolvers", Patton quickly retorts "They're ivory. Only a pimp from a cheap New Orleans whorehouse would carry a pearl-handled pistol."
-Fact: George C. Scott's Patton (and his real life counterpart) only carries one ivory handle Colt 1873 Single Action Army. The second pistol he carried was an ivory-handled Smith and Wesson .357 'Registered Magnum', later given the designation Model 27. The Single Action Army was engraved and had an Eagle carved into the left grip panel. Both the Registered Magnum and Single Action Army also had Patton's monogram on the right grip panel.
Smith & Wesson .357 Registered Magnum
Patton's signature ivory-handled SAA is replaced by a Smith & Wesson Registered Magnum with his "GSP" initials engraved on it for the shot during his opening speech. It is otherwise seen at points in the film being carried in combination with his Colt SAA revolver. General Patton purchased the Smith & Wesson 'Registered Magnum' (known later as the Model 27) in 1935 directly from Smith & Wesson. He had the nickname "Two Guns" as he wore matching Colt SAA that he had until giving one away as a gift. He then wore that Smith & Wesson in place of the one given away. He also wore Colt 1908 Hammerless Pistol and a Remington Model 51 pistol.
Colt Model 1903 Hammerless
Patton also carries a Colt Model 1903 Hammerless as a personal sidearm (kept either in his waistband or a shoulder holster), most notably using it to shoot at a German plane that fires at his headquarters in North Africa. Major General Walter Bedell Smith (Edward Binns) also carries a Colt Hammerless in a shoulder holster.
Colt M1911
American soldiers and officers, including Gen. Omar Bradley (Karl Malden), carry the M1911 on their holsters, some of which are shoulder holsters.
Submachine Guns
M1928A1 Thompson
The M1928A1 Thompson is primarily carried by the staff officers of both Gen. Patton and Gen. Bradley, but is also seen in the hands of US soldiers.
MAT-49
Some of the Moroccan troops that line up for Patton carry MAT-49 submachine guns. These are anachronistic for the scene, which takes place in 1943, as they weren't developed until a few years later. Likely intended as a stand-in for the period-correct but difficult to acquire MAS-38.
The Moroccan troops that march for Patton carry MAS-36 rifles.
M1 Garand
Many of the American soldiers carry M1 Garand rifles.
Beretta BM59
When US Army soldiers are seen arguing at a congested intersection, one of the soldiers appears to carry at first glance an M1 Carbine. Upon closer inspection, the rifle's magazine appears to be too big to be for the carbine. It's been surmised that this rifle is in reality a Beretta BM59, a rifle not introduced until the 1950's.
Machine Guns
Browning M2 Aircraft
Patton himself holds onto the barrel of a Browning M2 Aircraft heavy machine gun while riding atop a half-track on his way to his new headquarters in North Africa. Several tanks are seen fitted with these as well.
Browning M2HB
Tanks and Half-tracks of Patton's Third Army roll through France and Germany with mounted Browning M2HB heavy machine guns.
Browning M1919A4
Several Browning M1919A4 machine guns are seen mounted on M2 tripods used by American troops during Patton's first engagement with Rommel's forces.
Browning Automatic Rifle
The Browning Automatic Rifle is briefly seen carried by US troops during Patton's first engagement with Rommel's forces. Judging by the placement of the bipod, it's possible the weapon is a FN BAR Type D.
Other
M20 "Super Bazooka"
What appears to be an M20 "Super Bazooka" is used by Patton's troops (Like the American tanks in the film, the M20 would not be correct for the time period).
Panzerfaust
During the winter offensive, a German soldier is briefly seen carrying the Panzerfaust.
Flamethrower
A German soldier uses a Flamethower to take out an American half-track during the Battle of the Bulge.
Trivia
M48 "Patton" Tanks
The tanks used in the film to represent German armor are in reality anachronistic US made M48's, also known as the "Patton". These were likely on loan from the Spanish Army, who provided a variety of military equipment for the film. These tanks were painted in desert camouflage with German markings for the production.
M41 Walker Bulldog
The majority of the US tanks seen in the film are in reality anachronistic M41 Walker Bulldogs.