During the second season, LAPD Det. Sgt. Rick Hunter (Fred Dryer) carries a Heckler & Koch P9S with muzzle compensator, also seen during the opening credits.
Walther PPK/S
During the second season, LAPD Det. Sgt. Dee Dee McCall (Stepfanie Kramer) carries a stainless Walther PPK/S with white grips chambered in .380 ACP.
Campo Alto, CA Sheriff Johnson (Don Stroud) carries a Ruger Security Six as his duty sidearm in "The Biggest Man in Town" (2.03).
Smith & Wesson Model 19
Mongol (Nathan Jung) has a Smith & Wesson Model 19 as his main sidearm in "Night of the Dragons" (2.02). In "The Big Fall" (2.09), Fabro (Vic Polizos) fires a Model 19 at Hunter. Several LAPD uniformed officers use the Smith & Wesson Model 19. Sgt. Neville Sigerson (William Smith) carries one in a few scenes of "Think Blue" (2.11) in lieu of his normal Model 10 HB.
unidentified pistol
One of the Chinese thugs in "Night of the Dragons" (2.02) draws an unidentified compact pistol.
Heckler & Koch P9S i believe.
Star 30 M
Another Chinese thug in "Night of the Dragons" (2.02) carries a suppressed Star 30M.
Smith & Wesson Model 10 HB
McCall (Stepfanie Kramer) commandeers a Smith & Wesson Model 10 Heavy Barrel when escaping the Chinese gang's headquarters in "Night of the Dragons" (2.02). During the taping of the show-within-a-show Street Heat in "Killer in a Halloween Mask" (2.05), J.J. Hendrix (Stephen Shortridge) carries a blued Model 10 in his role as Officer Street. The Model 10 HB also appears to be the main sidearm of the uniformed LAPD officers in "Think Blue" (2.11), carried by Sgt. Neville Sigerson (William Smith) and Officer Charlie Coster (Ramon Bieri). Hunter (Fred Dryer) takes one away from Seymour Ryker (Mik One) in the beginning of "Burned" (2.14) when Ryker runs out of bullets and carries his own as an off-duty weapon in "The Setup" (2.19). One of Nick Bartoni's mobster thugs uses one in the same episode, as does Charlie Whitewood (George McDaniel). Both Vinnie Brokaw (Frank Campanella) and his son Marco (Joseph Cortese) handle Model 10 HBs in the episode "Scrap Metal" (2.15), as do the mobsters they employ. In "Fagin 1986" (2.16), youth gang leader Hector Rivas (Trinidad Silva) gives one to one of his gang members. Private detective Harry Malone (Rod Arrants) carries one in "62 Hours of Terror" (2.17). "Puss" Hammond carries one in a shoulder holster in "Death Machine" (2.18), as does Matt (Brett Porter) the jewel thief. Michael Varn (Jack Colvin) holds one on Hunter and McCall in "The Setup" (2.19); Gloria Raymark (Sydney Walsh) fires one at Hunter in the same episode. Jerome "Typhoon" Thompson (Isaac Hayes), Eddie Z. (Miguel Fernandes), and Jerry (Luke Andreas) all use Model 10s in "The Return of Typhoon Thompson" (2.22).
Colt Detective Special (1st Generation)
Raymond Bellamy (Stuart Whitman) carries a blued first generation Colt Detective Special in "The Biggest Man in Town" (2.03). Cynthia Flagg (Dorian Lopinto) keeps one in her purse in "Rich Girl" (2.04).
In a continuity error, McCall's (Stepfanie Kramer) PPK/S becomes a long-barreled nickel Walther PP when she apprehends David Talon in "Killer in a Halloween Mask" (2.05). It becomes her usual PPK/S in the next shot.
Colt Detective Special (3rd Generation)
Raoul Mariano (Richard Yniguez), cultural attache to the fictional South American nation of Curaguay, carries a nickel third generation Colt Detective Special in "Rape and Revenge" (2.06-2.07). In "Saturday Night Special" (2.23), Isabel Teret (Anne-Marie Johnson) uses one throughout the episode.
Detonics ScoreMaster
When Hunter (Fred Dryer) goes to Curaguay to hunt Raoul Mariano in "Rape and Revenge" (2.06-2.07), he is sold a Detonics ScoreMaster from an illegal arms dealer.
Smith & Wesson Model 36 Blued
While guarding Fabro in "The Big Fall" (2.09), Hunter (Fred Dryer), Det. Gary Krewson (Jonathan Banks), and Det. Longmire (Mills Watson) all carry a Smith & Wesson Model 36. Hunter also uses it as his primary weapon in "Burned" (2.14), identifying it as a ".38". Umberto (Richard Coca) is given a Model 36 Snub by gang leader Hector Rivas (Trinidad Silva) in "Fagin 1986" (2.16). Willem Sunderson (Robert O'Reilly) holds a Model 36 on Hunter and McCall in "The Setup" (2.19).
Lt. Ambrose Finn (John Shearin) has two nickel Smith & Wesson Model 36 snubnose revolvers holstered near his red suspenders. One is also used as a decoy in "Saturday Night Special" (2.23) to entrap Isabel Teret who impressively recognizes it as not being the Model 66 she had previously hidden.
Colt Python
A uniformed LAPD officer in "War Zone" (2.13) carries a blued Colt Python while the others carry S&W Model 10 HBs.
Hector Rivas (Trinidad Silva) gives a Smith & Wesson Model 66 with a 3" barrel to Miguel Morales (Philip Gordon), one of the members of the youth gang he creates in "Fagin 1986" (2.16). When Miguel is shot, Umberto Sandoval (Richard Coca) picks up the Model 66 and uses it to kill the liquor store clerk. The junkie (Richard Lineback) also draws one on Isabel Teret (Anne-Marie Johnson) in "Saturday Night Special" (2.23), which she later hides in the trash.
Willem Sunderson (Robert O'Reilly) shoots Niki Richmond (Regina Richardson) at the beginning of "The Setup" (2.19) with a suppressed Röhm RG-24 revolver, which Hunter later describes as a silenced .22. An unsuppressed version is the titular weapon in "Saturday Night Special" (2.23), used to shoot a homeless man.
Ruger Mk I
Col. Danelian (Rita Zohar), the sleeper KGB agent posing as a landlady in Los Angeles, carries a suppressed Ruger Mk I as her sidearm of choice, using it to commit several murders in "The Beautiful and the Dead' (2.20-2.21). Hunter refers to it as a "sound-suppressed .22-caliber handgun".
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Beretta 3032 Tomcat
Isabel Teret (Anne-Marie Johnson) uses a stainless subcompact pistol, possibly a Beretta 3032 Tomcat, to shoot Wanda the homeless woman in "Saturday Night Special" (2.23).
Submachine Guns
Madsen M50
Many of the Chinese and Vietnamese thugs in "Night of the Dragons" (2.02) carry Madsen M50 submachine guns, with McCall (Stepfanie Kramer) grabbing one for the final gunfight.
Uzi
Another weapon commonly wielded by the Chinese thugs in "Night of the Dragons" (2.02) is the Uzi. In the same episode, Det. Lt. Raymond Lau (Clyde Kusatsu) takes an Uzi from his trunk to face off against the Chinese for kidnapping his daughter, handing it off to McCall (Stepfanie Kramer) when making sure his daughter is safe.
Sterling SMG
Campo Alto, CA Sheriff Johnson (Don Stroud) uses a Sterling SMG to carry out an assassination in "The Biggest Man in Town" (2.03). The sound of the weapon is suppressed despite no suppressor attached and the weapon is described as "a kind of gun gangsters use".
One of Zajak's mercenaries in "War Zone" (2.13) carries a MAC-10 during the medical warehouse raid and the prison bust. An officer identifies the mercenaries to McCall as wearing "jungle garb" and carrying "Uzis".
TEC-9
One of Marco Brokaw's thugs fires a TEC-9 at Hunter and Alicia several times during the episode "Scrap Metal" (2.15). As the TEC-9 production began in 1985, this would have been a very new weapon on the market by the time this episode was broadcast on February 1, 1986.
Rifles
M16
One of Nim's Vietnamese henchmen carries an M16 variant in "Night of the Dragons" (2.02).
Remington Model 30
A bolt-action Remington Model 30 is visible in Det. Lt. Lau's trunk in "Night of the Dragons" (2.02).
Campo Alto Sheriff Johnson (Don Stroud) fires a Winchester Model 70 back at Hunter and McCall when he sets up the trap to capture Hunter in "The Biggest Man in Town" (2.03).
AKM
In "Rape and Revenge, Pt. 2" (2.07), the soldiers in the fictional South American nation of Curaguay carry AKM rifles, one of which is commandeered by Rick Hunter (Fred Dryer), who uses it to fire back at the soldiers. Sonny Zajak (Vernon Wells) and his crew carry AKMs when raiding the medical warehouse in "War Zone" (2.13).
The weapon that gets dropped out of the helicopter is a replica of an AK-47, either a model gun or an airsoft weapon. They would never drop a real rifle out of a helicopter. -MT2008
Daewoo K2
All of Varn's henchmen, including Willem (Robert O'Reilly) and the chauffeur (J.D. Hall) in "The Setup" (2.19) fire at the police with fixed stock Daewoo K2s or folding stock Daewoo K1s.
Daewoo K1
All of Varn's henchmen, including Willem (Robert O'Reilly) and the chauffeur (J.D. Hall) in "The Setup" (2.19) fire at the police with fixed stock Daewoo K2s or folding stock Daewoo K1s.
unidentified assault rifle
Some of Zukoff's KGB thugs fire assault rifles at Hunter and McCall as he attempts to make his escape in "The Beautiful and the Dead, Pt. 2" (2.21). They then are ordered to toss them overboard by the U.S. Coast Guard.
Ruger Mini-14
A KGB thug bursts into Mrs. Danelian's apartment with a semi-automatic Ruger Mini-14 in an attempt to kill Hunter and McCall in "The Beautiful and the Dead, Pt. 2" (2.21).
Machine Guns
M60
Despite telling his followers that a real man doesn't need an "Uzi or even a Sterling", Sonny Zajak (Vernon Wells) carries an M60 machine gun during "War Zone" (2.13).
Shotguns
Franchi SPAS-12
Hunter (Fred Dryer) keeps a Franchi SPAS-12 in his car, pulling it out several times during the course of the show.
Remington 870 Sawed Off
In "Million Dollar Misunderstanding" (2.08), armored truck robber Sonny Dunbar (Robert Davi) carries a Remington 870 with the barrel sawed down and the stock sawed off with a shoulder sling as his primary weapon.
Mossberg 500 AT
Some of the uniformed LAPD officers in "Think Blue" (2.11) have Mossberg 500 AT shotguns.
Hunter (Fred Dryer) takes an Ithaca 37 "Stakeout" into Finn's office after a biker uses it to shoot at Typhoon in "The Return of Typhoon Thompson" (2.22).
Other
Federal Model 201-Z Gas Riot Gun
Lau has a Federal Gas Riot Gun in his trunk in "Night of the Dragons" (2.02). One of Zajak's mercenaries uses a 201-Z to fire tear gas canisters at the ambulance and police cars in "War Zone" (2.13).
Acid Pistol
David Talon (Gary Graham) carries an acid-squirting pistol as his maiming weapon in "Killer in a Halloween Mask" (2.05).