B and T Industries
Perfect on my AI AT308, absolutely perfect. Really built for it.
I love the yaw dampening feature which is really needed on a long, heavy rifle. Works right out of the box with ease and large enough to do the job without getting in the way.
I'd read that it only takes 30 sec. to install or remove. Honestly, if it takes more than 1o you're doing something wrong,
I'm glad I got the 3" leg extensions for prone shooting. Regret that I didn't get the "ski pole" feet. The provided large rubber feet work but on some surfaces you really need something a bit less mushy with a cement or other hard bench or window sill.