bobdbldr, from my research and the people i talk to the only way to go for a recoil reducing stock is the Blackhawk Knoxx Spec Ops stock.
You may find that the safety on your mossberg is not well located to work with a pistol grip/AR style stock. You will have to take your finger off/away from the trigger to access the safety.
I'm with muscle1000. I watched an operator on a tactical course struggle getting from tang safety to pistol grip while mounting the gun, or worse, while bringing gun from a high ready to bearing on threat. I struggle just getting from the tang safety to the regular wrist grip, but trade that against using either a right hand safety or the safety issues of having a reversed safety get mixed up in a pool. Pistol grips work for thumb safety switches. No so fine with tangs. IMHO




























