Element Airsoft M145 AEG Spring

Add More Power to Your AEG Build

At Bullseye Country Sport, the mainspring is one of the most influential components when it comes to adjusting the power output of an AEG. The Element M145 Upgrade Spring is designed for players looking to increase muzzle energy in compatible airsoft electric guns, making it a popular choice for upgrade and custom build projects.

Manufactured for use in standard AEG gearboxes, the spring is compatible with many Tokyo Marui-spec platforms, including rifles from manufacturers such as Tokyo Marui, ICS and Classic Army. As with any upgrade spring, final performance will depend on the overall setup of the rifle, including compression components, barrel configuration and other internal upgrades.

Whether you're rebuilding a gearbox, replacing a worn spring or putting together a higher-powered DMR or sniper-style AEG build where site rules permit, the M145 provides a straightforward way to increase spring tension within a compatible gearbox.

Why It's Great

Designed for AEG gearbox upgrades

Suitable for many Tokyo Marui-spec platforms

Popular choice for higher-power builds

Ideal for repairs, rebuilds and custom projects

Manufactured for consistent spring tension

Compatible with a wide range of AEG gearboxes

Quick Specs

Manufacturer: Element

Spring Rating: M145

Type: AEG Upgrade Spring

Length: 175mm

Inner Diameter: 11.8mm

Outer Diameter: 14.5mm

Compatibility: Many Tokyo Marui-spec AEG Gearboxes

Application: AEG Power Upgrade

Same Day Dispatch on All Orders Placed Before 3pm Monday – Friday

For Airsoft Use Only, cannot be Adapted or Modified for any other purpose

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