Pay in 4 interest-free payments of $86.25 Learn more
Ships within 48 hours · Estimated delivery Sep 1 - Sep 6
Ideal for repairs
professional installation is recommended when upgrading your NGRS gearbox internals
The RetroArms CNC Piston with Full Steel Rack (16 Teeth) is a high-performance upgrade component designed for demanding AEG builds
M150 spring rating – typically outputs ~470–500 FPS with 0
1x FPS CNC POM Double O-Ring Ball Bearing AEG Piston Head for Tokyo Marui NGRS (TPSRE)
RetroArms AEG Spring SiCr with Progressive Winding – M130 Receivers Ideal for repairsThe 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
