Angel was the American televison series spin-off of the WB series Buffy the Vampire Slayer. Following the destruction of Sunnydale High and the defeat of the mayor in the Buffy Season 3 finale "Graduation Day, Part 2", Angel (David Boreanaz) left for Los Angeles. He soon met half-demon Doyle (Glenn Quinn), and Cordelia Chase (Charisma Carpenter), a former member of Buffy's Scooby Gang who also left for LA after the Battle of Sunnydale High. Together they formed Angel Investigations, investigating supernatural occurrences in Los Angeles. Unlike its parent show, Angel never shied away from firearms, and the first half-dozen episodes of Angel had almost as many guns as Buffy had seen is the first 3 seasons combined. The series aired in the US on The WB from 1999-2004 and was co-created by Joss Whedon.
The following weapons are seen in the television series "Angel":
A thug and some security guards carry Beretta 92 INOX Non Guns in "City Of" (S1E1)
M1911A1
A pair of demon debt collectors carry nickel-plated M1911A1s with pearl grips in "Rm w/a Vu" (S1E5). Wesley (Alexis Denisof) also uses a pair of M1911A1s as his weapons of choice later in the series.
Desert Eagle
The human associate of the demon debt collectors carries a stainless Desert Eagle of unknown mark or caliber.
Smith & Wesson Model 34
Tina (Tracy Middendorf) uses a Smith & Wesson Model 34 with a nickel finish in "City Of" (S1E1). It has adjustable sights which rule out the Model 36 & 60. It could be a Model 15 snub, but they are most commonly seen with a square butt.
Mob boss Little Tony (John Capodice) retrieves an Ithaca 37 with rifle sights from the police armory in "Sense & Sensitivity" (S1E6) during his attempted jailbreak and later tries to shoot Kate with it. Doyle (Glenn Quinn) later takes the weapon, using it to cover the recaptured criminals. Another escaping criminal is also seen with one.
Submachine Guns
Heckler & Koch MP5A3
MP5A3s are used throughout the series by LAPD and Wolfram & Hart SWAT teams.
MP40
An MP40 is used by a member of Watcher special operations in "Sanctuary"(S1E19).
Rifles
Colt AR-15 A2
A Colt AR-15 A2 is used by an escaping criminal during the attempted jailbreak in "Sense & Sensitivity" (S1E6).