ISMI 20lb 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.

When you need a heavy, durable recoil spring engineered for full-size Glock slides ISMI’s 20 lb. recoil spring delivers predictable slide timing and long-term durability. Built to motorsport-grade standards from chrome-silicon alloy and processed for maximum reliability, this spring is for specialized builds that require extra resistance; compensated barrels, heavy loads, or custom full-size setups. Find the best parts to upgrade or repair your Glock at NDZ Performance.

Features:

• Controls slide velocity on heavy or compensator-equipped full-size builds.
• Reduces slide snappiness and helps stabilize recoil timing for faster, more consistent follow-ups in the right application.
• Far longer service life and tighter tolerances than music-wire OEM springs.
• Heat-treated, shot-peened, stress-relieved for reduced relaxation and extended fatigue life.

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.