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The following firearms were used on the Showtime series Californication:
The carjacker (Luis Moncada) who steals Hank's new Porsche in "Filthy Lucre" (1.09) uses a two-tone Glock 19.
Ithaca 37
Lew Ashby (Callum Keith Rennie) keeps an Ithaca 37 in his hallway, firing it into the air to end disagreements in his house.
Glock 17
A liquor store robber (Jonah Wharton) in "Dogtown" (3.10) holds a third generation Glock 17 on Charlie Runkle (Evan Handler). A tattoo artist in "Lawyers, Guns, and Money" (4.06) also has a Glock.
Beretta 92FS
Another liquor store robber (Mario Orozco) in "Dogtown" (3.10) holds a Beretta 92FS on Hank. A tattoo artist in "Lawyers, Guns, and Money" (4.06) also carries one.
Smith & Wesson Model 29
Kim (Philip Tan), the Korean convenience store owner in "Dogtown" (3.10), chases the robbers out of his store with several shots from his Smith & Wesson Model 29.
Flintlock Pistol
In "Comings and Goings" (3.11), Hank Moody (David Duchovny) and Stacy Koons (Peter Gallagher) duel with Flintlock Pistols when Koons gets drunk after one of his Civil War re-enactments.
M1911A1
Eddie Nero (Rob Lowe) draws a M1911A1 when at a tattoo parlor with Hank and Charlie in "Lawyers, Guns, and Money" (4.06). Hank (David Duchovny) takes it away from him after punching him in the face.
Smith & Wesson Model 36 Nickel
A girl in the tattoo parlor in "Lawyers, Guns, and Money" (4.06) draws a nickel Smith & Wesson Model 36 snubnose.
Beretta Cougar
As "Officer Kapinos" in a zombie film she is starring in, Sasha Bingham (Addison Timlin) fires a blank-firing Beretta Cougar at a pack of zombies in "Lights, Camera, Asshole" (4.08).
SIG-Sauer P226
Samurai Apocalypse (RZA) carries a SIG-Sauer P226 when in character for his film //Santa Monica Cop// in "At the Movies" (5.09).
IMI Desert Eagle
Samurai Apocalypse (RZA) keeps a chrome Desert Eagle as his primary weapon during the fifth season, notably using it during the finale "Hell Ain't a Bad Place to Be" (5.12).