Wolff 47414 Standard Recoil Spring 14LB - S&W Model 5904 39 59 9mm mp-40-10-full Part# 3001777 Smith & Wesson

Part# 3001777 Smith & Wesson M&P 45 M2

Serial# 439323 (individual part reference)

Heavy bull barrel profile for improved stability

Model 4566TSW

Wolff 47414 Standard Recoil Spring 14LB - S&W Model 5904 39 59 9mm mp-40-10-full Part# 3001777 Smith & WessonWolff 47414 Standard Recoil Spring 14 LB Part #47414 Wolff factory standard 14 pound recoil spring for Smith & Wesson 3rd generation 9mm pistols. Made by Wolff GunspringMakers, the industry leader in precision springs. This spring matches OEM specifications for reliable cycling and long service life. Includes firing pin spring. Compatible Models Model 39, 439, 639 Model 59, 459, 559, 659 Model 3904, 3906, 3944, 3946 Model 5903, 5904, 5906, 5923, 5924,