ISMI 15lb Recoil Spring for Glock Full Size ONLY

This ISMI 15lb Recoil Spring fits Glock Models: G17, G17L, G20, G21, G22, G24, G31, G34, G35, G37 - Full Size ONLY.

Upgrade slide velocity and longevity in your Glock pistol with ISMI’s 15 lb. recoil spring, available at NDZ Performance. Engineered specifically for full-size Glock slides, built from aerospace-grade materials, and utilizing motorsport processes; this spring delivers consistent, repeatable performance cycle after cycle. Find the best components to upgrade or repair your Glock pistol at NDZ Performance.

Features:

• Optimized for full-size slides: Correct length and force for full-size Glock models; do not use in compact or subcompact slides.
• Stable, consistent cycling: Helps maintain reliable feeding and ejection with less spring relaxation over time.
• Long service life: Superior fatigue resistance compared with standard music-wire springs.
• Power: 15 lb nominal recoil force
• Material: Aerospace chrome-silicon (or stainless options where specified)
• Processing: Heat-treated, shot-peened, stress-relieved for minimal relaxation and consistent tolerances
• Manufacturing standard: Motorsport-grade winding and QC for durability under heavy cycling

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.