ZCI 8mm Ver.2 Complete Gearbox w/ Microswitch & QD Spring Change (Wiring: Rear / Small Tamiya)

Features Standard version 2 gearbox design 18:1 CNC steel gears Reinforced piston w/ full metal rack Stainless steel cylinder w/ aluminum piston head Microswitch trigger QD spring guide 8mm bearings 19.7mm nozzle  Manufacturer: ZCI Specifications: Material: Metal Alloy, Polycarbonate, SteelCompatibility: For Tokyo Marui Spec M4 / M16s and other AEGs with a V2 GearboxWiring: Rear-wired with Small Tamiya connector About ZCI Ltd. Zhucheng International CO., LTD (ZCI) specializes in research & production of precision Airsoft parts.