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Ships within 48 hours · Estimated delivery Sep 19 - Sep 24
Compatibility: SR25 / long-type AEG platforms
Silver anodized finish for corrosion resistance and aesthetic appeal
and FPS consistency
Compatibility: ICS M4 AEG (split gearbox)
hardened steel
RetroArms CNC Gearbox for SR25 – QSC Version Blowback Units Compatibility: SR25 / long-type AEGThe RetroArms CNC Gearbox for SR25 QSC (Quick Spring Change) is a precision engineered upgrade designed for serious airsoft techs and players who demand maximum performance and reliability. Machined from a single block of aircraft grade aluminum (EN AW 7075 T6), this gearbox shell provides exceptional strength and dimensional accuracy, making it ideal for high stress builds including high FPS DMR setups. This version includes RetroArms renowned QSC