Description Recoil springs are available with load-rated specifications to tailor the recoil function to individual needs. Each load-rated recoil spring includes a factory strength striker spring. These recoil springs must be used with Wolff recoil guide(available seperately). Spring will not be captive. For Use in: M&P45 45acp 4.5″ Barrel Reduced Power…….: 14 & 15 Lb. Factory Standard…..: 16 Lb. Extra Power…………: 17, 19, 20, 22 & 24 Lb.
