The following weapons were used in the film L.A. Story:
When Harris K. Telemacher (Steve Martin) is told that it's the first day of Spring, he realizes that it's open season on the L.A. Freeway and proceeds to pull out a Ruger GP100 from his glove compartment. His girlfriend Trudi (Marilu Henner) is seen loading it and Harris then exchanges gunfire with other drivers.
A female driver is seen pulling a snub nickel Colt Python to fire at Harris' car.
12 Gauge Double Barrel
A water truck driver pulls his 12 Gauge Double Barreled Shotgun when Harris drives into his lane.