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Flat-face trigger design for consistent finger contact and improved trigger control
reduce internal friction
Rating: M150
Trusted by techs worldwide
and reliable magazine changes with added ergonomic control
RetroArms AEG Spring SiCr with Progressive Winding – M130 AEG Flat-face trigger design for consistentThe 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