Scribblenauts
 

Should we do a page for it? It's got several real-world weapons in it.

I know nothing of scribblenauts but post a screenshot or two and we can make a judgement.

Never heard of Scribblenauts.

What is this?

It's a DS game. You can write down nouns, and then they appear.
Here's a pic with all the guns I could think of, going across.

M16 (Typed in "assault rifle")
Something (Typed in "Machine gun")
M1 Carbine (Typed in "Carbine")
Mp5 (Typed in "SMG")
Barrett (Typed in "Sniper Rifle")
M134 (Typed in "Minigun")
Shotgun
Beretta (Typed in "Pistol")
Thompson (Typed in "Tommy Gun"

My vote is no, they are too cartoonish and slightly generic.

Well, we've got pages like TF2, which contains no real weapons, and is also cartoony.