China O'Brien is a 1988 action film directed by Robert Clouse (the director of the 1973 Bruce Lee film Enter the Dragon). Cynthia Rothrock stars in the film as China O'Brien, a police officer and martial arts expert who unexpectedly kills an armed person who appears to be a teenager during a shootout. Deeply shocked by this, she retires from the force and swears never again take up a gun. When she returns to her native Midwestern town where her father is sheriff, China finds the town under the power of a crime boss named Sommers. When there is an opening for the job of sheriff, Sommers plans to give the star to his devoted man, but then he finds China will run for sheriff herself. After she wins the election and with the help of her friend Matt Conroy (Richard Norton) and Native American biker Dakota (Keith Cooke), China starts cleaning up the town. While an English language film, China O'Brien was overseen by noted Hong Kong martial arts film producer Raymond Chow and his Golden Harvest Studios (known for producing several films starring Jackie Chan). Rothrock, Norton and Cooke all would return for the 1990 sequel China O'Brien II.
The following weapons were used in the film China O'Brien:
When China O'Brien retires from police service, she puts her service Smith & Wesson Model 15 revolver. Corrupt Deputy Marty Lickner (Patrick Adamson) also carries a Model 15.
Smith & Wesson Model 67
Sheriff O'Brien (David Blackwell), China's father, carries a Smith & Wesson Model 67 (or possibly a nickel plated Model 15). In the final scene same looking revolver is used by crime boss Edwin Sommers (Steven Kerby).
Smith & Wesson Model 19
In a continuity error, Sommers' revolver switches to a nickel plated Smith & Wesson Model 19.
Unidentified revolver
A revolver is briefly seen in hands of a teenager whom China kills in the opening scene. It has target sights and seemingly full underlug so a Colt Python is a possible guess but it's hard to prove or refute it.
Shotguns
Unidentified shotguns
A pair of pump action shotguns is briefly seen on the wall of Beaver Creek pub.
Assault Rifles
M16A1
During the encounter on the sawmill one of Sommers' henchmen holds an M16A1 with sniper scope.
CAR-15 Carbine
An M16 Carbine in CAR-15 style is used by several Sommers' henchmen, passing from man to man. In the climactic scene Dakota (Keith Cooke) disarms Lickner (Patrick Adamson) and uses the carbine. It is possibly a customized semi-auto (converted to full auto) Commercial CAR-15 that has A1 upper receiver, full fence lower receiver, collapsible stock, a flash hider in 4.25" Moderator style, and a bayonet lug.