Monk

The following weapons were seen in the television series Monk:

Smith & Wesson Auto

Captain Leland Stottlemeyer (Ted Levine) carries a Smith & Wesson Auto pistol as his primary weapon. Various other cops and criminals use various Smith & Wesson pistols as well.

Beretta 92FS

Monk (Tony Shalhoub) and other characters are occasoinally seen using Beretta pistols referred to as "Ling & Wesson 9mms". In one episode Randy correctly refers to his sidearm as, "A Beretta 9mm Centurion". Maybe they had legal problems after that.

Beretta 92FS - 9x19mm.

AR-15

Numerious police and SWAT officers use various AR-15 Variants.

Colt AR-15A2 Government Carbine - 5.56x45mm.

Mossberg 500

Seen used by various police.

Mossberg 500 - 12 gauge

Walther PPK

A .32 caliber Walther PPK is used by a criminal to shoot Monk in the leg. Later in the same episode Natalie Teeger (Traylor Howard) obtains the weapon and accidentally shoots Monk in his other leg.

Walther PPK in 7.65x17mm Auto (.32 ACP)

Walther P38 Watergun

In one episode, Monk uses this to threaten a criminal, only, to his embarrassment, squeezes the trigger too hard, revealing it's true nature.

Glock 17

Used by a criminal attempting to kill Captian Stottlemeyer.

A Generation 3 Glock 17 9x19mm. Note the finger grooves, thumb reliefs, and accessory rail on the frame, which differentiate it from the older model.

Smith & Wesson Model 36

Monk picks up a pearl handled Model 36 dropped by a suspect and used to shoot the criminal dressed as Santa Clause.

Smith and Wesson Model 36 - .38 special - 5 shot

Ruger Mini-14

Fired from a rooftop by a suspect at Monk, Natalie, and Monk's brother(Steve Zahn).

Stainless Steel Ruger AC556 Carbine with Full Stock - 5.56x45mm

A Ruger Mark III is used by a jewelry store owner in, "Mr. Monk Is Up All Night".