AEG spare parts & upgrades

Spare parts and upgrades for AEGs – the electric airsoft guns built around a gearbox with piston, cylinder and gears driven by an electric motor. The category covers the whole chain from motor to muzzle: gearbox shells, gear sets, pistons, cylinder heads, springs and spring guides, nozzles, hop-up chambers, hop-up buckings, inner barrels, trigger contacts, MOSFETs/electronics, connectors and small parts such as shims, bearings and screws.

For the gearbox internals we mainly stock SHS, Ultimate, Element and Retro Arms – the latter also with CNC gearboxes, pistons and tappet plates. Gear sets come from Siegetek, BalystiK and Ultimate, among others. Motors are available from Ultimate (Infinity and BOOST), Action Army, G&G Armament, Nimrod Tactical and Hank Tactical (brushless). Electronics come from GATE (Titan, Status, Quantum) and Jefftron, and for hop-up and barrels we have Maple Leaf, PDI, ORGA, Archwick, Airtech Studios and Maxx Models. The range runs from a gold-plated connector up to a GATE Status trigger unit.

What to look for

• Gearbox version: V2 (M4 types), V3 (AK, G36 and others), V6/V7 and various special gearboxes have different cylinders, spring guides, cut-off levers, selector plates and trigger contacts. Always check the version before you order.
• Gears, motor and spring must match: A high-speed gear set (e.g. 13:1) needs a motor with enough torque, while a high-torque set (e.g. 18:1 or 32:1) can pull a stronger spring. Motors come with a short or long shaft depending on the grip and gearbox.
• Compression: The cylinder porting must match the barrel length, and the piston head, cylinder head and nozzle must seal tightly. Shims and bearings (7, 8 and 9 mm) control the position and wear of the gears.
• Hop-up and inner barrel: Hop-up buckings from e.g. Maple Leaf (Macaron, Mr Hop) and R-hop parts from Airtech/Maxx determine the BB's trajectory. Inner barrels come in bore diameters from 6.00 to 6.23 mm and lengths from around 150 to 650 mm.
• Electronics and connectors: A MOSFET or programmable trigger unit protects the contacts and adds functions such as burst and active brake. Check the connector type (Deans, Tamiya, gold connectors) against your battery.

Who it's for

This category is for those who want to service or tune their own AEG – from replacing a broken sector clip to a full rebuild with a new gear set, brushless motor and electronic trigger. If you would like help with a rebuild, the workshop at our shop in Aulum, Denmark can help.

See also Motors, Airsoft electronics and Hop-up & hop-up buckings.