In stock at our supplier, delivery in 5–10 working days
RK74 Rotary Hop Up Chamber — Black
Inside every AEG is a gearbox that takes the abuse. Complete shells, gear sets, pistons, cylinders, springs and bushings for V2 and V3, for repairs and for builds that run on 11.1 V.
1153–1180 of 1405 products
In stock at our supplier, delivery in 5–10 working days
RK74 Rotary Hop Up Chamber — Black
In stock at our supplier, delivery in 5–10 working days
Super High Torque Slim Motor + Amoeba Slim Pistol Grip — Black
In stock at our supplier, delivery in 5–10 working days
CMC Flat Trigger Assembly — Orange
In stock at our supplier, delivery in 5–10 working days
CMC Flat Trigger Assembly — Black
In stock at our supplier, delivery in 5–10 working days
CMC Flat Trigger Assembly — Blue
In stock at our supplier, delivery in 5–10 working days
CMC Flat Trigger Assembly — Red
In stock at our supplier, delivery in 5–10 working days
Normal Type Fuse 35A 5pcs — Purple
In stock at our supplier, delivery in 5–10 working days
MS120 Non-Linear Spring — Green
In stock at our supplier, delivery in 5–10 working days
Normal Type Fuse 25A 5pcs — Transparent
In stock at our supplier, delivery in 5–10 working days
Mini Type Fuse 30A 5pcs — Green
In stock at our supplier, delivery in 5–10 working days
AceMOS Drop-In MOSFET Unit — Black
Out of stock, also at our supplier
CNC Nozzle M4
Out of stock, also at our supplier
NT Blackbird 20K CNC Motor Long
Out of stock, also at our supplier
Faston Female Motor Connectors 2.8mm 2pcs
Out of stock, also at our supplier
Leviathan V2 Optical to Stock + Speed Trigger
Out of stock, also at our supplier
Aero Cylinder Head Ver 3
Out of stock, also at our supplier
Reinforced Polycarbonate Piston 16 Steel Teeth
Out of stock, also at our supplier
Reinforced Piston Head for Ver.II and .III
Out of stock, also at our supplier
Gold Pin Connector Set Mini Connector
Out of stock, also at our supplier
AEG Cylinder Head
Out of stock, also at our supplier
6mm Metal Sintered Bearing
Out of stock, also at our supplier
Transformers Autobot 70° Hop Up Rubber for VSR and GBB - SLC — Blue
Out of stock, also at our supplier
High Torque Slim Motor + Amoeba Slim Pistol Grip — Black
Out of stock, also at our supplier
High Torque Slim Motor + Amoeba Slim Pistol Grip — Desert
Out of stock, also at our supplier
MR. Hop Up Rubber 80° for AEG
Out of stock, also at our supplier
CNC Gearbox V2 Steel 8mm QSC
Out of stock, also at our supplier
Transformers Decepticons 60° Hop Up Rubber for VSR and GBB - SLC — Yellow
Out of stock, also at our supplier
Sorbo Pad Sniper KitAn AEG gearbox turns the motor's rotation into a piston stroke: the motor drives a bevel, spur and sector gear, the sector gear pulls the piston back against the spring, and the piston drives air through the cylinder and nozzle into the BB. Everything in this category is one of those parts or supports them, such as bushings or bearings for the gear axles, the tappet plate that moves the nozzle, the spring guide and the shell itself. Version 2 gearboxes sit in M4, MP5, G3 and SCAR replicas; version 3 in AK, G36 and AUG; V6 and V7 are P90 and M14 designs. Use the gearbox version filter first.
A stripped piston or a cracked shell is the usual reason to open a gearbox. While you are inside, steel gears with a proper shim job, a polycarbonate piston with a metal rack, an aluminium piston head with bearing, a brass cylinder matched to barrel length and a bearing spring guide turn a stock gun into a reliable one. A stronger spring raises energy: M90 to M100 is standard, M110 to M120 for 1.3 J, M130 and up for DMRs where the site allows. Cylinder and barrel should match in volume for efficiency.
A gearbox build needs tools from maintenance, a motor that suits the gear ratio and a MOSFET if you plan to run 11.1 V. Internals are unrestricted parts, and the energy of the finished gun must stay within your country's limit.
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