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 below.  Spring will not be captive.

• Reduced Power.......: 10, 11, 12, 14 & 15 Lb.
• Factory Standard.....: 16 Lb.
• Extra Power............: 17, 19, 20, 22 & 24 Lb.

Wolff recoil spring guide rods for M&P .45 ACP series full size pistols are designed specifically for Wolff recoil springs above allowing adjustment of the recoil function. Guide rods are solid steel, hardened to a minimum of 55-RC and have a jet black finish that won't wear off and provides corrosion protection. Available as guide rod alone, or  your choice of recoil spring. See spring ratings information above. For use with full size models only - can not be used with factory recoil spring.