ISMI Walther PDP Recoil Spring for Heavyweight Guide Rods

Designed to fit Walther Models: PDP 4", 4.5", 5"/ PDP Pro-E 4", 4.5"/ PDP Pro-X PMM 4.6" Full-Size & Compact/ PDP Pro/ PDP F-Series 4" ONLY/ PDP SF 4", 4.5", 5"/ PPQ 4", 5"/ PPQ Q4 4"/ PPQ Q5 & Q5SF 5"/ P99 4".

Does Not Fit: PPQ45, PDP-F3.5", PPQ SC.

Dial in your Walther PDP’s recoil performance with ISMI’s premium flat wire recoil springs, available now at NDZ Performance. Engineered for shooters who demand durability, smooth cycling, and consistent performance. Made from high-grade chrome silicon, these springs offer up to 10x the service life of standard music wire; making them perfect for high-round-count use and duty-ready setups. Each spring is heat treated, shot peened, and stress relieved to ensure long-term reliability and flawless operation under stress. Specifically designed for the Walther PDP platform. Pair with an NDZ Guide Rod for the ultimate performance upgrade. Get yours at NDZ Performance today!

Features:

• Springs available in 13 lb., 14 lb., 16 lb., & 18 lb. weights, as well as a convenient tuner pack that contains them all.
• Chrome silicon construction: 10x longer life than standard springs.
• Heat treated, shot peened, and stress relieved.
• Made in the USA.

NDZ Walther PDP Heavyweight Guide Rod Assembly found here

See our Walther Products here

Note: NDZ always recommends any part be installed by a qualified and trained gunsmith. NDZ promotes the use of safety practices and gear when working on any firearm.