The following weapons were used in the film Crossroads (1986):
Colt Police Positive
Willie Brown (Joe Seneca) carries a Colt Police Positive with a 6 inch barrel.
Colt Police Positive - .38 Special.
Smith & Wesson Model 586
The Smith & Wesson Model 586 revolver is carried by the Sheriff and his deputies when they confront Willie and Eugene sleeping in the barn.
12 Gauge SxS Double Barreled Shotgun
A 12 Gauge Side by Side Shotgun is seen carried by the farmer who accompanies the deputies in the barn..
J. Stevens and Company Side by Side Shotgun (Circa 1878) exposed hammers and designed to fire Black Powder shotgun shells - 12 gauge
12 Gauge Over and Under Shotgun
The other shotgun used in the film is a 12 Gauge Sawed-off Over-and-Under seen in the hands of the Bartender (Harry Carey Jr.).
Browning 5.25 Over/Under Shotgun - 12 Gauge