Rebel M120 AEG Upgrade Spring Boost Your AEG’s Performance with Precision Power Take your airsoft game to the next level with the Rebel M120 Upgrade Spring—engineered for durability, reliability, and consistent FPS output. Designed for AEG (Automatic Electric Gun) gearboxes, this M120 spring delivers an estimated muzzle velocity of around 390–410 FPS with 0.20g BBs (results may vary depending on your build and air seal quality). High-Tension Steel Construction – Manufactured from heat-treated, high-carbon steel for long-lasting performance and resistance to fatigue. Progressive Coil Design – Offers smoother compression and reduced stress on your gearbox, prolonging the life of internal components. Polished Finish – Minimizes friction and improves spring response for quicker cycling. Compatible with Most AEG Gearboxes – Ideal for Version 2 and Version 3 gearboxes; always verify compatibility with your specific platform. Why Upgrade to M120?The Rebel M120 spring is perfect for players looking to increase their FPS for outdoor field play while maintaining reliability. It strikes a great balance between power and wear on your internals—recommended for intermediate to advanced airsoft techs. Note: Upgrading to an M120 spring may require additional modifications or reinforced internals. Always ensure your gearbox is capable of handling increased tension.
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