Matthew Quigley (Tom Selleck) uses a Sharps 1874 Long Range rifle with a 34" barrel(4"s longer than a standard 30" barrel) converted to fire a .45-110 mettalic cartridge with a 540 grain paper-patch bullet. It is uses double set triggers, the back trigger making the front lighter, and is fitted with a ladder-elavated Vernier peep sight and a Lyman Beach front sight. He is an incredible sharpshooter with this rifle and often makes use of the double set triggers for more accurate shots. Sometimes he shoots from so far away, the report of the rifle is heard 2-3 seconds after the impact of the bullet. Several times in the film the gun is shown capable of sending people airborne (some even flipped in mid-air!), as movie rules states a big gun must send bad guys flying.
Breech Loader
Cartridge
Barrel
Double Set Triggers
Sight
Colt 1860 Army
Elliot Marston (Alan Rickman) uses a Colt 1860 Army .44 caliber as his personal sidearm. He refers to it as the Army revolver and has much respect for its maker, Colonel Samuel Colt. He gives his second one to Quigley in the final duel, thinking he is bad with revolvers based on how he said he never had much use for one. When Quigley defeats him and his two men he says, "I said I never had much use for one. Never said I didn't know how to use it." He pockets the revolver, then realizing he found a reason to use one.
Colt 1851 Navy
Marston's men are mainly armed with Colt 1851 Navys throughout the film.
Colt 1851 "U.S. Marshall"
Marston's second-hand man carries a pocket version of the 1851, know as the "U.S. Marshall" with ivory grips and cylinder grooves which Quigley also pockets for himself after the final duel.
Remington 1858 New Army
When Quigley is in town getting .45-110 shells made, the first of Marston's men to fire on him has a Remington 1858 New Army revolver.
Hawkins Plains Rifle
Marston's men arm themselves mainly with these percussion rifles throughout the film. Quigley kills one of these men and takes the rifle off his horse for Crazy Cora to use. One of Marston's men can be seen cocking one on the wagon when the Red-coats approach.
Bounty Hunter Dueling Pistol
The gunsmith of the town offers Quigley a Italian .45 caliber dueling pistol, called simply the "Bounty Hunter", but he refuses, claiming he never had much use for a shooter(pistol).
Colt 1848 Dragoon
Quigley also takes off the dead man's horse a Colt 1848 Dragoon .44 caliber pistol. Crazy Cora (Laura San Giacomo) uses the Colt Dragoon to fend off dingos from her camp and an Aborigine baby while Quigley is away getting .45-110 shells from a town. Presumably the same man who owned the horse is seen cocking the gun on the wagon as the Red-coats aproach.
Walker Colt 1847
A full-sized original Walker Colt 1847 is seen in the hands of one of Marston's men during the shootout in in the town with Quigley.
Enfield 1864 Cavalry Carbine
The British Red-Coats are all armed with Enfield 1864 Cavalry carbines.