Choate makes all of the synthetic stocks for H&R's single shots, they're the same stocks that come on em from H&R. I've got a monte carlo set on my Topper Deluxe Classic, which uses the same SB1 frame as the Pardner, it works fine, all H&R single shot stocks will fit ALL of their frames except for a couple of the shotgun forends. Limbsaver makes a prefit pad for the synthetic stock too, got one on the TDC.
Tim