The SIG-Sauer P226, with accessory rails is the sidearm of U.S. Deputy Marshals Charlie Duchamp (Laz Alonso) and Ray Zancanelli (Domenick Lombardozzi). Several criminals also use the P226.
Vega cartel gunman uses Glock 17s converted to full-auto when they assasinate an informant and the US. Marshals with him in "Where in the World is Carmen Vega" (S1E13)
Error creating thumbnail: File missingGlock 17 converted to full auto with 33 round magazine (Note the absence of a selector switch on the slide) 9x19mm
Glock 26
In "Fun with Chemistry (S1E7) Charlie hands Erica his backup gun, a Glock 26, when they clear a building.
In "Paid In Full" (S1E10) a hitman, Virgil Downing, carries a suppressed Walther P22 as he avenges a rape victim, Genevieve Krause (Marcella Lentz-Pope).
In "Round Two" (S2E2), Brody Ardell (James Harvey Ward), an undercover FBI agent, is given an M1911A1 by the Victor Mannion (Channon Roe), a fellow escape .
In the Season 1 Pilot eppisode, and again in "Fun with Chemistry" (S1E7), the escaped convicts can be seen using a Smith & Wesson Model 686 with a 3-inch barrel.
A Vega cartel gunman fires a Mini Uzi during the assault on Flo-Flo's strip club. Due to the (lack of) lighting, it is impossible to determine exact model, but it is most probably a Mini model
In Queen of Hearts(S1E5), Deputy US Marshal Ray Zancanelli is seen with a Remington 870 shotgun with synthetic furniture. Several criminals and prison guards are seen wth the weapon in later episodes.
In the episode "An Unjust Death", a man meets Damien Fontleroy at the door of his house armed with an Ithaca 37 shotgun, Damien later takes it for his own use.
In the episode "An Unjust Death", a prison guard can be seen armed with a Mossberg 590 shotgun with a high-capacity magazine tube when Damien Fontleroy breaks out of prison.
In "Like Father, Like Son" (S1E6) Christian Beaumont (Zack Ward), an anti-government extremist, opens fire on the Breakout Kings with a Ruger Mini-14 when they raid his bunker.
A prison guard in "One for the Money" (S1E9) uses a DefTech 37mm launcher to fire a tear gas round during a riot.
Defense Technologies/Federal Laboratories launcher 37mm with folding stockError creating thumbnail: File missingThe guard with his DefTech 37mm as he responds to the prison riot
12 Gauge Orion Flare Gun
In "There Are Rules" (S1E12), Ray uses an Orion Flare Gun found on a boat to disable Ronald Barnes (Jeff Seymour) with a shot to the leg.