Hacksaw Ridge is a 2016 World War II film directed by Mel Gibson and tells the true story of Desmond T. Doss (Andrew Garfield), a US Army medic in the 77th Infantry Division who faced persecution and ridicule for his refusal to carry a weapon into battle due to his religious beliefs and ended up receiving the Medal of Honor for saving the lives of 75 of his fellow soldiers during the battle for the Maeda Escarpment in Okinawa (the eponymous Hacksaw Ridge). Shot in Australia with a mostly-local cast, the film was released to critical acclaim and nominated for numerous awards, including six Oscars (notably Best Picture, Best Director and Best Actor for Andrew Garfield).
The following weapons were used in the film Hacksaw Ridge:
US troops are seen with Colt M1911A1 pistols, notably Lieutenant Manville (Ryan Corr) and Smitty Ryker (Luke Bracey). Lieutenant Manville carries his in a tanker-style shoulder holster.
M1917 Revolver
A Smith & Wesson M1917 Revolver is seen in a flashback, held by both a drunken Tom Doss (Hugo Weaving) and his son Desmond Doss (Andrew Garfield). The M1917 was likely the same revolver Doss used in WWI.
Submachine Guns
M1 Thompson
Several US Soldiers use the M1 Thompson, distinguished from the M1A1 by its simplified L-Sight.
M1A1 Thompson
The M1A1 Thompson is seen used by US troops, most notably Lucky Ford (Milo Gibson, Director Mel Gibson's son).
M1 Garand rifles are the most common weapons in the hands of US troops. Sergeant Howell (Vince Vaughn) notably uses an M1 Garand to kill a Japanese sniper, after which Doss borrows the rifle to create an improvised drag stretcher. The weapon plays a plot point during the middle act, when Doss refuses to qualify on it during basic training.
M1 Carbine
The M1 Carbine is seen used by officers of the US Army including Captain Jack Glover (Sam Worthington) and Lieutenant Manville (Ryan Corr). Medic Irv Schecter (Ori Pfeffer) also carries the Carbine. Manville's Carbine is an anachronistic post-WW2 model, distinguished by its adjustable rear sight and bayonet lug.
M1A1 Carbine
In a continuity error, Captain Glover's radioman can be seen firing an M1A1 Carbine, the paratrooper model with folding stock, at the Japanese bunkers. In all other scenes it's a regular M1 Carbine.
Arisaka Type 38
Arisaka Type 38 rifles are the most commonly seen rifles in the hands of the Japanese Imperial Army, almost always fitted with bayonets.
US troops are seen using Browning Automatic Rifle, including by Smitty Riker (Luke Bracey) to great effect. The weapons in the film have the bipod removed. In one notable scene, he fires it one-handed whilst using a disembowelled corpse as a human shield - quite a feat given the weight and recoil of the weapon.
Browning M1919A4
Browning M1919A4 machine guns are seen used by US troops, mounted on M2 tripods. In one scene, Randall "Teach" Fuller (Richard Pyros) fires the M1919A4 by the hip - holding it by the barrel, a good way to get burned.
Browning M2 Heavy Barrel
Browning M2 heavy machine guns are seen mounted on M4 Sherman tanks and M5 Halftracks used by the 96th Infantry Division.
Japanese infantry are also seen with the Type 96 Light Machine Gun, most notably used to great effect during the Japanese counterattack.
Grenades
Mk 2 Hand Grenade
Smitty Ryker (Luke Bracey) uses the Mk 2 Hand Grenade against a Japanese position, in true action-hero style (pulling the pin with his teeth).
Type 97 Hand Grenade
Japanese soldiers use the Type 97 Hand Grenade. It is notably seen in the final battle when Japanese soldiers fake surrender then throw them at US troops. Doss deflects the grenades, taking the brunt of the blast in the process.
Launchers
M1A1 Bazooka
An M1A1 Bazooka is used by Sergeant Howell to knock out a Japanese bunker.
M1 Mortar
Japanese soldiers use the M1 Mortar, painted a dirty yellow, during the battle of Hacksaw Ridge.
M2 Mortar
US Army soldiers use M2 Mortar during the initial attack on Hacksaw Ridge. During the Japanese counterattack, several retreating U.S. soldiers including Smitty Ryker (Luke Bracey) are seen using 60mm rounds as improvised hand grenades against the Japanese. They armed the rounds by banging them against their helmets and threw them, killing several enemy soldiers, ala Saving Private Ryan (only they used the mortar base plate to prime the rounds). A US Army Sergeant received the Medal of Honor during Okinawa for holding off a Japanese attack with, amongst other things, 60mm mortar rounds.
Other
M2 Flamethrower
US Soldiers, notably Wal Kirzinski (Nico Cortez), use the M2 Flamethrower against Japanese positions to great effect.
M37 Satchel Charge
Andy "Ghoul" Walker (Goran D. Kleut) and Smitty Ryker (Luke Bracey) use the M37 Satchel Charge in an attack on a Japanese bunker. During the final battle a combination of satchel charges and flamethrowers are used to clear the Japanese caves.