Smith & Wesson K frame Hand, 3 pin $35.00 Part 72, 73 on the exploded diagram. Used, excellent condition 3 pin Hand from a 19-4, K frame revolver. Will fit other models of K frame revolvers. Out of stock Category: Smith & Wesson Related products Smith & Wesson K frame .38/.357 Extractor, recessed chambers $25.00 LPA Smith & Wesson M&P Fibre Optic Adjustable Sight Set. $195.00