The Glock 17 serves as the standard issue sidearm for the Duluth Police Department. It is carried by Officer Gus Grimly (Colin Hanks) and Duluth SWAT operators. FBI Special Agents Webb Pepper (Jordan Peele) and Bill Budge (Keegan-Michael Key) also carry Glocks as their sidearms.
Lorne Malvo (Billy Bob Thornton) draws a Beretta 92FS Inox and places it on his car seat in anticipation of an ambush. However, when he is rammed by Wrench and Numbers the gun falls out of his reach, forcing him to use a knife to defend himself instead.
When Lorne Malvo (Billy Bob Thornton) meets Lester Nygaard (Martin Freeman) in Las Vegas in 2007, he uses a suppressed Taurus PT911 to execute Burt Canton (Stephen Root), his wife and his own (albeit cover) fiance to intimidate Lester. He had been befriending Burt for over a year in order to gain access to his brother in witness protection. He later uses the same gun upon returning to Bemidji.
Lester Nygaard (Martin Freeman) arms himself with a nickel SIG-Sauer P226 with pearl grips to protect himself from Lorne Malvo (Billy Bob Thornton). The gun was inherited from his brother Chazz, who Lester framed for his wifes murder. Interestingly, the nickel P226 was the weapon-of-choice for the kidnappers in the original movie.
Bemidji Police Chief Vern Thurman (Shawn Doyle) carries a Colt Python as his duty weapon. His successor, Bill Oswalt (Bob Odenkirk) also carries a Python as his duty weapon.
Lester Nygaard (Martin Freeman) plants his brothers Smith & Wesson Model 66 snubnose in his nephew Gordo's school bag when he breaks in to frame him for murder.
When Gus Grimly (Colin Hanks) breaks into Lorne Malvo's cabin, he finds a nickel plated Smith & Wesson Model 29. He later uses this to shoot and kill Lorne whilst he tends to his injured leg.
Purchased by Lester Nygaard (Martin Freeman) prior to the events of the show. It is later used by Lorne Malvo (Billy Bob Thornton) to murder Chief Vern Thurman (Shawn Doyle)
Lorne Malvo (Billy Bob Thornton) duct tapes a pistol gripped Remington 870 to the hands of Don Chumph (Glenn Howerton) before staging a shooting to distract the Duluth Police Department. When SWAT officers arrive and see Don taped to an exercise bike with the shotgun, they mistake him for a hostile and shoot him multiple times.
A member of the Duluth Police Department is seen firing a regular Remington 870 at the house rigged by Lorne Malvo (Billy Bob Thornton). Another 870 is seen in the patrol car used by Deputy Molly Solverson (Allison Tolman).
Lorne Malvo (Billy Bob Thornton) uses a scoped M4A1 to summon Duluth PD to a house and distract them. He later rigs the same rifle to a tripwire, causing it to fire when SWAT officers approach, resulting in them breaching the house and killing a restrained Don Chumph.
Chazz Nygaard (Joshua Close) illegally owns a Daewoo K3 Paratrooper with rail forearm, vertical grip, and PIP collapsible stock. The K3 is meant to be a stand-in for an M249 SAW, and Chazz is said to have purchased the weapon from a friend who works in the Minnesota National Guard base Camp Ripley. He stores it in a secret compartment in his gun safe which Lester hides evidence to frame him for Pearls murder. Although the weapon is said to be an M249, it is clearly recognizable as a K3 by the shape of the gas tube and front sight (the show is filmed in British Columbia, where the K3 is always used as a stand-in for the M249).
