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16:1 gear ratio – a versatile balance between speed and torque
Ideal for high-speed builds requiring reduced piston weight
CNC machined for tight tolerances and durability
Trusted by techs worldwide
selector plate) are aligned correctly during setup
RetroArms AEG Spring SiCr with Progressive Winding – M130 AEG 16:1 gear ratio – aThe 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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