Someone should start a similar thread about the gun Leon shoots Holden with at the start of the original movie, which I believe was a 4 barrel COP357 derringer.
The Compact Off-duty Police .357 Derringer is indeed correct. Fun fact, though — the gun didn't officially enter production until 1983...
It might be noted that the prop gun was modified to discharge two barrels at once (upper right, lower left), to provide a more ... impressive muzzle flash (further enhanced with a strobe).
"Leon's Gun" also started off as a bit more futuristic four-barrelled design (still based on the COP .357), but was in the end simplified down to just use the gun without external modifications.
I would expect that if it get stats in the game at all, it will be as a (terrible) four-barrelled .357 Magnum hold-out gun, period — simply what the real-world shooting prop
is, full stop.
That would be the only consistent conclusion, going from Ligan's approach to Deckard's blaster.
But ... yes indeed. Food for a separate thread.
EDIT:
Okay. They actually managed to go further than even I had anticipated.
Yes, "Leon's gun" is indeed a hold-out subcompact ...
yes, it is indeed a four-barrelled Derringer ...
yes, it is indeed in .357 calibre ... AND it fires two barrels at once, just as the filming prop was modified to do for visual effect!!
the most common back-up is a tiny four-barreled subcompact pistol, which packs a punch with two .357 round barrels firing at once
I mean,
come ON! Has this fellow
no independent imagination at all??