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.
   Note: recoil springs must be used with a solid, non-captive guide rod such as the Wolff guide rod listed below. Spring will not be captive. For use with full size models only.

• Reduced Power.......: 12, 14 & 15 Lb.
• Factory Standard.....: 16 Lb.
• Extra Power............: 17, 19, 20, 22 & 24 Lb.

Note:
   All Wolff recoil springs for the M&P series pistol must be used with Wolff guide rods available below.

Reduced Power:
Wolff Reduced power recoil calibration pak for S&W M&P (9mm, .40 S&W, .357 Sig) contains 1 each 12, 14, and 15 Lb. recoil springs. Also included are three standard power striker springs. (Stock No. 13221)

Extra Power:
Wolff Extra power recoil calibration pak for S&W M&P (9mm, .40 S&W, .357 Sig) contains 1 each 17. 19, 20, 22, and 24 Lb. recoil springs. Also included are three standard power striker springs. (Stock No. 13220)

Wolff recoil spring guide rods for M&P series pistols are the ideal companion for Wolff recoil springs above. Guide rods are solid steel, hardened to a minimum of 55-RC and now have a jet black finish that won't wear off and provides corrosion protection. Wolff guide rods provide optimum performance for Wolff recoil springs through better support and spring alignment. Permits you to keep factory recoil assembly intact.  For use with full size models only. Available as a seperate item, or with your choice of recoil spring. Please see information above on ratings.

W. C. Wolff Company offers reduced power striker springs (firing pin springs) for M&P pistols rated at 4 pounds. The factory spring is 5 pounds. This spring will help reduce trigger pull.
Warning: For competition use only - not for duty use.