An Advanced Taser M26 is used by a Kabuto-gumi wakashu when he ambushes Mikoto from the back in "Fire Game". Mikoto uses one at the start of "Closed Heart Shelter" after Fiona Ran Winchester hands it to her.
AMT Hardballer
An AMT Hardballer is used by Black Label vigilante Arashi Mikami as his primary sidearm. According to Shouji Sato, the nickname for the weapon is "Long Slide". Mikoto briefly uses it in the middle of "Fire Game" after Arashi tosses his sidearm to her.
Beretta 92F
A Beretta 92F is seen with one of Aranami's men in "Prescription from Hell".
Colt M1911A1
What appears to be a Colt M1911A1 with a a skeleton-type hammer is used by Miki Tsurugi as her sidearm, first seen in "Surgical Strike". Ex-Black Label vigilante Shinichiro Inunaki uses this when he tests Arashi and Mikoto's fighting skills at the start of "Chaos World".
Detonics CombatMaster
A compact Detonics CombatMaster is used by Miki as her concealed sidearm, first seen in "How's the Water?".
Glock 17
A Glock 17 is seen with one of the Kabuto-gumi wakashus at the start of "Fire Game". Some of the escaping Wild Hunt terrorists use Glock 17s in the middle of "Galactic on Stage".
Smith & Wesson 5906
A Smith & Wesson 5906 is used by corrupt lawyer Jin Masaki near the end of "Prescription from Hell".
Springfield Armory V10 Ultra Compact
A Springfield Armory V10 Ultra Compact is used by Black Label vigilante Arashi Mikami as his secondary sidearm. According to Shouji Sato, the nickname for the weapon is "Knuckle".
Tokarev TT-33
Tokarev TT-33s are seen with some of the armed men under Aranami in "Prescription from Hell".
Walther P99
The Walther P99 is used by the fake Makoto Ogawa when he reveals his "allegiance" in "Fire Game".
Revolvers
Nambu Model 60
The Nambu Model 60 is used by officers assigned to the Tobioka Police Station in the series.
Smith & Wesson Model 627
Dual Smith & Wesson Model 627 is used by Black Label vigilante Mikoto Kiba as her main sidearm. According to Shouji Sato, the nickname for the weapon is "Eight Ball".
Taurus Judge
A Taurus Judge is used by Pyrina as her main sidearm, first seen in "Midnight Guerrilla".
Submachine Guns
FN P90
A FN P90 with a suppressed barrel was used by Miki when she began her vigilante career in a flashback in "Closed Heart Shelter".
Heckler & Koch MP5A3
Heckler & Koch MP5A3s are used by Special Assault Team operators throughout "Galactic on Stage".
Heckler & Koch MP7A1
A Heckler & Koch MP7A1 is used by Sayo while under her rampage influence throughout "Closed Heart Shelter".
KRISS Vector
A KRISS Vector with folding iron sight and a TDI vertical foregip is used by Wild Hunt as the main primary weapon in the Neo TV arc takeover, first seen in "Sacrifice Idol".
Assault Rifles
Colt M16A1
A Colt M16A1 is used by a gangster hired by Yoroida in "Surgical Strike".
Colt M16A2
Colt M16A2s are seen with Wild Hunt terrorists throughout "Galactic on Stage".
Shotguns
Franchi SPAS-12
A Franchi SPAS-12 with no stock is used by Wild Hunt to shoot a Neo TV employee in the leg after they announced the takeover in "Sacrifice Idol".
Ithaca 37
An Ithaca 37 is briefly seen in the hands of a gangster hired by Yoroida in "Surgical Strike".
Remington 870
A Remington 870 with synthetic black furniture is used by a gangster hired by Yoroida in "Surgical Strike". Another version with an extended magazine tube and wooden furniture was used by Oki Masaaki in "Midnight Guerrilla" before he was disarmed by Arashi. Wild Hunt terrorists use them when they seize control of the Neo TV arc building in "Sacrifice Idol".
Sawed-off Double-Barreled Shotgun
A Sawed-off double-barreled shotgun is used by Black Label vigilante Arashi Mikami as his primary weapon. According to Shouji Sato, the nickname for the weapon is "Double Joker".
Sniper Rifles
Denel NTW-20
The Denel NTW-20 is used by Black Label vigilante Miki Tsurugi as her main anti-armor sniper rifle. According to Shouji Sato, the nickname for the weapon is "Indra Arrow".
Mk. 14 Mod 0 EBR
A Mk. 14 Mod 0 EBR is used by Black Label vigilante Miki Tsurugi as her main anti-personnel sniper rifle. According to Shouji Sato, the nickname for the weapon is "Silent Mist".
Remington M24
Remington M24s are used by SAT snipers during the Neo TV arc takeover near the end of "Sacrifice Idol".
SVD Dragunov
SVD Dragunovs with black synthetic furniture are used by Kabuto-gumi snipers intending to kill Mikoto and Pyrina in the middle of "Fire Game".
Rifles
Unidentified Rifles
A couple of unidentifiable rifles are seen in a flashback in "Chaos World".
Machine Guns
FN Minimi
A FN Minimi is seen mounted on a Eurocopter AS365 Dauphin 2 in "Surgical Strike".
GE M134
A handheld GE M134 is used by Black Label vigilante Sayo Hitsugi as her main weapon. According to Shouji Sato, the nickname of the weapon is "The No Pain".
Rheinmetall MG3
A Rheinmetall MG3 is used by Black Label vigilante Sayo Hitsugi as her alternate weapon. According to Shouji Sato, the nickname of the weapon is "Buzzsaw".
Grenades
Stun Grenade
A stun grenade of unknown design is used by SAT teams when they invade the Neo TV arc building in the middle of "Galactic on Stage".
Grenade Launchers
Heckler & Koch XM25
A Heckler & Koch XM25 airburst grenade launcher is the main weapon of the masked vigilante Pyrina, first seen in "Midnight Guerrilla".
M79
A M79 grenade launcher is used by Black Label vigilante Oriha Nashida as her main weapon. According to Shouji Sato, the nickname for the weapon is "I☆DOL Buster."
Rocket Launchers
RPG-7
A RPG-7 is used by Oriha Nashida as her main anti-armor weapon.
Others
PSE TAC 15 Crossbow
A PSE TAC 15 crossbow was used by an unknown assassin who killed the arms dealer Sayo was interrogating in the middle of "Midnight Guerrilla".