Lonex Power-Up Spring

The non-linear design features coils of varying spacing, which helps reduce the initial stress on your gearbox during the compression cycle. This results in smoother operation and more consistent muzzle velocity compared to standard linear springs.

This spring is designed for standard Tokyo Marui-spec gearboxes, which includes most Matrix and other compatible AEGs. If your rifle uses a proprietary gearbox design, you should verify compatibility before installation.

While this spring is a drop-in upgrade, increasing your FPS puts more stress on your gearbox components. It is recommended to ensure your piston, gears, and motor are in good condition to handle the increased tension.

The exact FPS increase depends on your current air seal, barrel length, and cylinder volume. Because every build is different, it is best to test your rifle over a chronograph before and after installation to measure the specific gain.

Installing a spring requires opening the gearbox, which involves disassembling the rifle and handling small, spring-loaded parts. If you have never opened a gearbox before, it is a manageable project with the right tools and a guide, but proceed with caution.