This one doesn't show any really good detail, but it's fairly clear that his revolver is different.
This one shows a great view of how different the Mateba is.
My favorite episode of GITS is called, I think, "One Angry Man." The rest of Section 9 carry semi-auto handguns in 5.7mm. Togusa is the only one who uses an archaic weapon: the Mateba auto-revolver, which in the time frame of the story, is considered obsolete. In "One Angry Man," Togusa comes across a full prosthetic man (basically a human brain in an android body) attacking a woman. Togusa shoots the attacker six times, then reloads and shoots him again, trying to disable his prosthetic body without killing him. Although the man is badly damaged, he still manages to shoot and kill the woman he was originally attacking.
Then a lawyer tries to show that Togusa was at fault for the woman's death--not her real attacker, but Togusa--because he was using an old, obsolete weapon instead of something more modern that was capable of more rapid fire and that could fire more rounds before requiring reloading. I've always thought that that was exactly the kind of insane argument that could actually happen in today's screwed-up world.
