Smith & Wesson M&P 9mm .40/.357 Recoil Spring 14lb. $14.97 14lb. reduced power recoil spring for the M&P 9mm, .40 S&W and .357 Sig. 53214 Out of stock Categories: Smith & Wesson, Wolff Gun Springs Related products Enfield 1914 / 1917 Rifle Service Pak $24.97