I just went and looked at an AR31 . It is a pretty nice bow ,but from all I' ve heard about the high quality on these bows..........I was a little disappointed with the paint on the inside of the riser(outside looked good). The inside of the riser is hollow(hard to explain) and unpainted. The inside was just full of overspray from painting the outside of the riser,looked kind of cheap IMO. I liked the balance and grip,but I didn' t like the draw very much. It does have a solid back wall. The local shop has them for $599.00( I didn' t get a chance to shoot it ).