Hmmm, that's funny.
It's not listed on their website catalog.
Probably temporarily not in stock (as is the rifle case, also).
At any rate, it looks identical to the rifle case (same features) except it's shorter in overall length.
It IS listed in the latest Cheaper Than Dirt catalog I have at home, I'm pretty sure.
When I ordered mine, it was also out of stock, but they got it in within a week, so there really wasn't much of a wait.
Maybe they've been selling a lot of those.
The only difference is that the carbine case isn't offered in all the colors that the rifle case is offered in. I bought the OD one. IIRC it's also available in black and digital (army) camo. The rifle case is made in those colors plus coyote brown (wouldn't you know that that was my first color preference?)