RetroArms AEG Spring SiCr with Progressive Winding – M190 Delayer Chips Capacity: 30 rounds / 120

Capacity: 30 rounds / 120 rounds (switchable)

providing smoother operation and longer lifespan

Designed to fit Version 2 gearboxes

and RetroArms’ signature QSC (Quick Spring Change) system — allowing you to swap your mainspring without disassembling the gearbox entirely

Ideal for both high-speed and high-torque builds

RetroArms AEG Spring SiCr with Progressive Winding – M190 Delayer Chips Capacity: 30 rounds / 120The RetroArms AEG Spring SiCr M190 is a high tension performance spring designed for the most demanding airsoft builds. Constructed from premium Silicon Chromium (SiCr) spring steel, this M190 rated spring delivers extreme FPS output, outstanding durability, and resistance to fatigue even in long term high stress conditions. With its progressive winding design, the spring compresses more smoothly at the start, helping reduce initial gear strain and