AWC Systems M91 BDR is a breakdown rifle based on the Remington 700. The conventional approach to breakdown rifles is to have a detachable barrel. AWC have instead made the butt stock detach. While this is going to be less compact than a detachable barrel breakdown rifle, it will be more accurate (in theory anyway).
The AWC M91 BDR is available in .308 Win. or .223 Rem. and with a 16.5″ or 18.5″ barrel.