The Glock 19 is carried by several detectives, including Det. Wyms (CCH Pounder). The Glock also is carried by Asst. Chief Ben Gilroy (John Diehl).
SIG-Sauer P226 (Non Gun)
In "Pilot" (S1E01), Mackey is seen taking what appears to be a nickel SIG-Sauer P226 off a suspect. In "The Spread" (S1E03), Vic takes a nickel SIG off a basketball player caught up in a raid.
SIG-Sauer P226 (Non Gun)
In "Pilot" (S1E01), Mackey is seen firing the stainless SIG, the pistol appears to be a Non Gun.
Jericho 941 Compact
A teenager is seen carrying a Jericho 941 Compact when Vic and Shane arrest him in Season 1's finale "Circles" (S1E13). Vic later holds the pistol on the teenager.
Revolvers
Smith & Wesson Model 642
In "Pilot" (S1E01), Officer Danni Sofer is seen putting what appears to be a Smith & Wesson Model 642 in her purse before going on a date.
Shotguns
Mossberg 500 Cruiser
The Mossberg 500 Cruiser is used throughout the series, usually by Det. Curtis "Lemonhead" Lemansky (Kenneth Johnson).
Mossberg 500
Uniformed officers are seen armed with the Mossberg 500 throughout the series.