The 648, a stainless version of the 48. The Model 51, blued, and the stainless 650 and 651, all are J frame kit guns. The 650 has fixed sights and the 651 has adjustable, I think they are all 4" barrels (but I am not positive). Some of these have 2 cylinders, 1 for .22LR. Then the 351PD, an "Airlite" 7 shot revolver with a 1 7/8ths barrel. I think that is all of them.

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Geoff. Since 1960.