Karas (translated as "Crow" or "Raven") is a six part OVA created by Tatsunoko Production to celebrate their 40th anniversary. The OVA was originally released in six parts on Japanese pay-per-view television, and was released as two full-length movies in the US titled "Karas: The Prophesy" and "Karas: The Revelation".
The following firearms were seen in the anime Karas:
Nambu Model 60
Officers Sagisaka and Kuri both carry Nambu Model 60 revolvers.
The audience is treated to a very detailed view of a yakuza thug chambering a round in his Tokarev TT-33.
A yakuza thug is seen using a Ruger SP101.
Detonics Combat Master
Otoha's father is seen using a Detonics Combat Master
Remington 1866 Derringer
In addition to his Detonics Combat Master, Otoha's father is seen with a Remington 1866 Derringer.
The mayor of Shinjuku is seen using a SIG P232
Nue is seen dual-wielding a pair of fictional pistols, both of which seem to be capable of fully automatic fire. He is also seen briefly using the longer of the two equipped with a scope.
Howa Type 89
A squad of JSDF soldiers are seen carrying Howa Type 89 rifles.
Several Yakuza thugs are seen aiming several RPG-7 launchers. At one man.