The OP said he'd post pictures if anyone was interested but never did.It is very difficult to tell the .380 carbine mag from the 9mm carbine mag. There is a very very small difference but you need to look close to see it.
I'll bet the only difference is feed lip settings.Just to sate my curiosity, I've ordered one and WILL post pics.
I'd take that bet but it wouldn't be an honest bet since I just took delivery of three of the .380 carbine mags.I'll bet the only difference is feed lip settings.