Pay in 4 interest-free payments of $1086.25 Learn more
Ships within 48 hours · Estimated delivery Jul 27 - Aug 1
CNC-machined aluminum construction for extreme durability and precision
the cylinder features a polished inner surface to reduce friction and wear on the piston
Made in the Czech Republic by RetroArms
Compatibility: SR25 / long-type AEG platforms
hardened steel
RetroArms CNC Gearbox for SR25 – QSC Version Blowback Units CNC-machined aluminum construction for extremeThe 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