Shotguns

This is a list of the shotguns that will be featured in the Black Ops 2 multiplayer. Note that these are the only shotguns that have been confirmed so far. This information came from the multiplayer trailer and from footage of the gameplay at Gamescom:

M1216

The M1216 is an automatic shotgun that holds 16 rounds per magazine. After 4 shots have been fired, your character will cycle to the next chamber and continue on firing. It's worth noting that this weapon has appeared in other games before; just not in Call of Duty. This particular weapon was made with a compact design:

M1216

Seiga 12

The Seiga 12 is a 12 gauge that was designed in the 1990s in Russia. It is currently produced and manufactured by the arms division of Izhmash. One of the remarkable things about this weapon is that it doesn't exactly look like a shotgun. Hell, I'd easily mistake it for an SMG or an AR:

Saiga-12 Black Ops 2

R-870 MCS

I've been unable to find any real life information on the R-870 MCS. All I know is that it appeared in the game Combat Arms. In-game, it's a pump-action that has a 8 shell tubular magazine. Here's a screenshot of the shotgun being used in Black Ops 2.

R-870 MCS