Anyone have one of these for their AR? Any other options would be appriciated.

First seen in Cabela's catalog. Sky-bar

I'd install it in a 2000 Nissan Xterra above the front seats if it doesn't sit too low.

No drilling required. Mounts using existing clothes hook mounts.

Thanks!

How well does it hold an AR?

Actually, I don't have one, but I have friends that do. They are OK for something like a Win 94 or almost any flat style long gun. An AR is certainly much thicker, it is also "rounder" and, depending on how flamboyantly it is accessorized, has a weight distribution issue which may allow it to rotate in the cradle, especially with a 30 round mag in place. That would probably present a literal headache should something let go.  Wear a hard hat! There are units that mount in the visor mounts that carry long guns, but I'm 5'9" and I find they affect my line of sight while driving.

While the add infers the gun(s) are "out of sight", anyone of average height walking by a "stock" height truck could and probaly would be able to easily see the rifles through the windows. When I do carry an AR (or any long gun) in my regular cab truck, it is usually in the space behind the seats, well out of sight.  

I have found that behind the seat to be about the best place for me. If you have a extended or quad cab style truck, I would try to find a mount or rack that can be mounted using the back of the front seats and places them above the foot space and below the knee space. MHO.

Thanks!

I was going to put it into an SUV but I was thinking the same as you, not enough headroom. I saw the headrest racks. Easy to install and not expensive, I may go that route.

Thanks again.