Monk - Season 3
The following weapons were seen in Season 3 of the television series Monk:
The Beretta 92FS is seen used by various characters in the series including police consultant Adrian Monk (Tony Shalhoub), Captain Stottlemeyer (Ted Levine), and Lt. Randy Disher (Jason Gray-Stanford). The Beretta is Randy's sidearm throughout the first half of the series, before he swaps to using a Glock 17 sometime prior to the seventh season.
In "Mr. Monk Takes His Medicine" (S03E09), "Mr. Monk Gets Cabin Fever," (S03E12), Stottlemeyer carries a Beretta 92FS instead of his usual Smith & Wesson 3913. In "Cabin Fever," both he and Disher use Berettas during the shootout with two Chinese hitmen.
In "Mr. Monk Gets Cabin Fever" (S03E12), FBI Special Agent Grooms (Josh Stamberg) shoots a Chinese assassin with a Glock.
Springfield 1911 Loaded
In the episode "Mr. Monk Takes His Medicine," (S03E09) Lester Highsmith (Ken Marino) uses what appears to be a Springfield 1911 Loaded to open fire on police officers.
In the episode "Mr. Monk Takes His Medicine" (S03E09) Monk uses a water pistol modeled on a Walther P38 in an attempt to bluff Lester Highsmith (Ken Marino) at an industrial park, only, to his embarrassment, to let the barrel drip, revealing its true nature. Monk's water pistol, noticeably, lacks several safety features that are necessary on water pistols to tell them apart from regular pistols (to avoid the risk of child injuries).
In the Season 3 premiere "Mr. Monk Takes Manhattan" (S03E01), Steven Leight (Jeffrey Dean Morgan) shoots and kills his wife in Central Park with what appears to be a "Non Gun" version of the Walther PPK, then kills the Latvian ambassador and his bodyguards later on with the same weapon. Incongruously, the bullets recovered from the crime scene are described as .22 caliber ("a pea shooter"), when the Walther PPK is chambered in .32 ACP and .38 ACP (However, the casing depicted in the crime scene is clearly not from a .22 caliber round).
Heckler & Koch MP5A2
The SWAT officers in "Mr. Monk and the Kid" (S03E16) use Heckler & Koch MP5A2 rifles during the raid on the Novaks' house.
In the episode "Mr. Monk Meets the Godfather" (S03E05) a crew of mafia hoods from the Lucarelli crime family are gunned down at a barber shop with one of their own MAC-10s.
Rifles and carbines
Blaser 93 Sniper Rifle
In "Mr. Monk Gets Cabin Fever," one of the Chinese hit men uses a Blaser 93 sniper rifle during the shootout at the Willowby cabin.
Norinco Type 56-1
In "Mr. Monk and the Election" (S03E15) illegal arms dealer Jack Whitman (Nick Offerman) tries to disrupt Natalie's campaign headquarters by shooting up the office with a Norinco Type 56-1. From Monk's statement, Stottlemeyer determines that they are looking for a rapidfire semiautomatic. It is later revealed that he was actually trying to shoot out a copier machine with an incriminating document containing his client's names and the weapons being sold to them.
Ruger Model 77
In Season 3's "Mr. Monk and the Employee of the Month" (S03E07), Monk grabs a Ruger Model 77 (identifiable from the paddle stock, and the built-in strap ring on the forestock, both of which are visible for a second) from the sporting goods section of the "Mega-Mart" and tosses it to his ex-partner, Joe Christie (Enrico Colantoni), who uses it to shoot out the tire of the getaway van.
RGD-5 Hand Grenade
In the Season Three episode "Mr. Monk and the Election" (S03E15), an arms dealer throws an RGD-5 hand grenade (erroneously described as being manufactured in Chechnya) through Natalie's window. In a rather comical scene, Monk slo-mo runs and tosses the grenade into the refrigerator... but then reopens the door and places it neatly in an empty compartment of an egg carton, before slamming the door and running away. Even in slow motion, the grenade takes a ridiculously long time to explode.
(N.B. This clip was played on an episode of MythBusters, in which the team tested the myth - used in several other films and television shows - that a refrigerator or bathtub can contain a bomb blast, but was declared "busted", since the side walls stood up to the blast, but the back and front were turned to deadly shrapnel.)
Mega Mart Rifles
In Season 3's "Mr. Monk and the Employee of the Month" (S03E07), several rifles are seen in the Mega Mart.