ISMI 22lb Recoil Spring for Glock Full Size ONLY

Designed to fit Glock Models: G17, G17L, G20, G21, G22, G24, G31, G34, G35, G37 - Full Size ONLY.

Get this heavy-duty recoil spring engineered for full-size Glock pistols by ISMI from NDZ Performance. ISMI applies motorsport-grade metallurgy and processing to deliver a high-force spring built for stability, longevity, and predictable slide timing in demanding builds. Find the best components to upgrade or repair your Glock at NDZ Performance.

Features:

• Control aggressive setups: Ideal for compensated barrels, heavy competition loads, or full-size pistols that need extra resistance to control slide velocity.
• Stable slide timing: Heavier spring reduces snappy rearward travel and can improve follow-up consistency on the right builds.
• Long service life: Designed to hold force and geometry over many cycles versus standard music-wire springs.
• Manufacturing pedigree: Motorsport-level engineering and QC for tight tolerances and predictable compression behavior.

See our complete line of Glock 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.