One of my hunting buddies has a Remington pump action rifle that he added a pistol grip meant for a Remington shotgun onto.
He's ex military so the pistol grip feels much more at home for him than the wood stock that the gun came with.
I think that the rifle action is the same size as the 20 guage shotgun frame, so if you get a Remington semi or pump gun, you know what style of stock to order...