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eye-catching look where no two sets are exactly alike
Bearing Type: Dual Ball Bearings
CNC-machined aluminum construction for extreme durability and precision
the cylinder features a polished inner surface to reduce friction and wear on the piston
Silver anodized finish for corrosion resistance and aesthetic appeal
RetroArms CNC Gearbox for SR25 – QSC Version Blowback Units eye-catching look where no twoThe 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