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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5
Dual O-rings to ensure consistent air seal
the EPG-C offers excellent ergonomics while providing a reduced grip length
Thread compatibility: 14 mm CCW (verify your build)
Not intended for use in real firearms
RetroArms AEG Spring SiCr with Progressive Winding – M120 ZERO SHOCK Dual O-rings to ensure consistentThe RetroArms AEG Spring SiCr M120 is a high performance upgrade spring designed to deliver consistent FPS output, smooth compression, and long lasting reliability. Made from Silicon Chromium (SiCr) alloy steel, this spring offers enhanced durability and resistance to fatigue, even in high RPS setups. Its progressive winding design ensures a gentler initial compression for smoother gearbox operation and reduced stress on internal components, while