XD 4'' Service 9/40/357
Delivers Smooth, Reliable Cycling, Eliminates Spring Bind,
High-quality one-piece guide rod and load-rated recoil
springs fine-tune slide movement for smoother cycling and
reduced frame battering in Springfield XD pistols.
Hardened steel guide rod helps prevent spring bind;
durable, black finish resists corrosion. Wolff 4" guide
rod and recoil springs must be used together. All
separate recoil springs and guide rod/spring combinations
include a factory power striker spring.