I just ordered one of the non-recoil reducing Knoxx stocks from TSE after trying a 870 at Whol sale Sport and finding my left handed handling did not touch the safety and engage it inadvertantly,. Althogh there is no recoil reduction the bonus of that 4 inches you save collapsing it and the pistol grip makes it mega-tactical.
I thought it would be perfect for my Norinco 14".
I would have liked the specops but the NRS will still be mighty cool and cost a fraction as much and I get it NOW..