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and aggressive SpeedQB-inspired aesthetics
Portable and easy to carry in tool kits or range bags
JST-XH plug for safe balance charging
Type: Electronic Trigger Unit (ETU / ECU)
Finish: Anodised surface (various colour/pattern options)
RetroArms CNC Gearbox M4/416 TM NGRS (8mm) Charging Handles and aggressive SpeedQB-inspired aestheticsThe RetroArms CNC Gearbox M4 416 TM NGRS (8mm) is a premium CNC machined gearbox shell designed specifically for Tokyo Marui Next Gen Recoil Shock (NGRS) M4 and HK416 platforms. Built from high strength aluminum alloy and engineered with extreme precision, this gearbox provides unmatched durability, perfect gear alignment, and enhanced performance for high end custom builds. Ideal for advanced technicians and performance focused builds, this gearbox
