Smith & Wesson K frame Bolt (cylinder catch) $60.00 Part 22 on the exploded diagram. Used, excellent condition bolt (cylinder catch) from a 19-4, K frame revolver. Will fit other models of K frame revolvers. Only 1 left in stock Smith & Wesson K frame Bolt (cylinder catch) quantity Add to cart Category: Smith & Wesson Related products Smith & Wesson K frame .38/.357 Extractor Rod, long $20.00 S&W 6904/4006 series XP magazine springs 3 pak $34.97