Engineered by Wolff, this enhanced firing pin spring (Part #26111) delivers extra power for Smith & Wesson .45 ACP pistols (645, 745, 4505, 4506, 4516, 4516-1, 4526, 4536, 457, 4546), 10mm models (1006, 1026, 1066, 1076, 1086), and .40 S&W firearms (4013, 4014, 4053, 4054). Single spring package ensures reliable primer ignition and consistent performance.
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