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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12
Always comply with local laws
Quick Spring Change (QSC) system for fast FPS adjustments
offering smooth operation in both high-RPS and DMR builds
The RetroArms AEG Spring SiCr M150 is a high-power upgrade spring crafted for serious airsoft builds that demand maximum muzzle velocity and spring strength
Designed exclusively for dual-solenoid HPA engines
RetroArms AEG Spring SiCr with Progressive Winding – M130 Recoil Springs Always comply with local lawsThe RetroArms AEG Spring SiCr M130 is a precision engineered upgrade spring built for high performance AEG builds. Constructed from Silicon Chromium (SiCr) steel, this spring is designed to provide stable FPS output, excellent resilience to fatigue, and long term durability, even under extreme gearbox stress. Its progressive winding design allows for smoother compression at the start of the cycle, reducing stress on gears and motor, while delivering
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