Strike Industries Reduced Power Flat Wire Recoil Spring for Glock Gen 3 (17, 17L, 20, 20SF, 21, 21SF, 22, 24, 31, 34, 35, 37) - Stainless Steel

A Strike Industries reduced power flat wire recoil spring for Glock Gen 3 gives you real control over how your pistol cycles and handles recoil. Factory springs get the job done with most ammo, but they're a one-size compromise—and they wear out. This stainless steel spring lets you dial in your Glock's timing and recoil behavior to match your ammunition, shooting style, and the specific gun you're running. Whether you're tuning a stock 17, 20, 21, 22, or any of the other compatible Gen 3 models, or you've already lightened your slide, a reduced power spring transforms how your pistol feels and performs.

Reduced power springs shine when you want faster, cleaner follow-up shots without fighting excess recoil energy. They also pair especially well with lightened or modified slides, where factory springs often feel sluggish or cause reliability hiccups. The flat wire design is built for durability and consistent performance shot after shot. Recoil springs are wear items—plan to replace yours periodically depending on round count—and having a quality aftermarket option on hand means you can fine-tune your gun instead of settling for factory spec.

Strike Industries springs are a smart upgrade for serious Glock shooters: competitors, defensive practitioners, and hunters who want their pistol working exactly how they want it, not how the factory decided in 1982.

Key Features

• Reduced power rate for lighter recoil impulse and quicker follow-up shots
• Flat wire construction for reliable, consistent spring behavior
• Stainless steel for durability and corrosion resistance
• Compatible with Gen 3 Glock frames (17, 17L, 20, 20SF, 21, 21SF, 22, 24, 31, 34, 35, 37)
• Works well with lightened slides and custom builds
• Lets you tune recoil and cycling to your ammo and shooting style

Specifications

Frequently Asked Questions

What Glock models does this spring fit?

This spring is designed for Glock Gen 3 frames only. It's compatible with the 17, 17L, 20, 20SF, 21, 21SF, 22, 24, 31, 34, 35, and 37. Do not attempt to use it on Gen 4, Gen 5, or other generations—springs are not cross-compatible between generations.

Why would I choose a reduced power spring over factory?

A reduced power spring cycles your pistol with less recoil energy, which speeds up follow-up shots and softens felt recoil. It also helps you dial in performance if you shoot lighter loads or have modified your gun with a lighter slide. Factory springs are a compromise designed to work with a wide range of ammunition; a tuned spring lets your specific gun and ammo work together better.

Will this work with my lightened or custom slide?

Yes. Reduced power springs are particularly useful when you've lightened your slide, since factory springs often feel sluggish or cause timing issues with less reciprocating mass. Many Glock owners running custom or race slides pair them with a reduced power spring to restore reliable, snappy cycling.

How often do I need to replace my recoil spring?

Recoil springs are wear items and will fatigue over time with use. How long one lasts depends on your round count and shooting volume. Having a quality replacement spring on hand—especially a tuned aftermarket option—means you can keep your gun running at peak performance instead of waiting for a failure or settling for factory spec.