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9.99
  • Piston, piston head & O-ring
  • For version 2 & version 3 gearbox
  • Full steel tooth rack - Very strong

If you are looking for a replacement piston on the cheap with no performance compromises, CYMA to the rescue! The CYMA Steel Tooth Piston Set w/Piston Head includes the piston itself, a piston head and a piston head O-ring. The piston has a full 15-tooth rack of steel teeth, improving strength while keeping overall weight manageable, making it great for high performance builds. The set is designed for version 2 and version 3 gearboxes and will be provided in a random colour; either blue or green.

From 48.49
Was 84.49
Save 36.00
  • Complete Set
  • Aluminium Cylinder
  • For Many Types Of AEG

A complete upgrade Cylinder set for AEGs which includes: Cylinder, Piston, Cylinder Head, Piston head and Nozzle. Improve your air seal and shot for shot efficiency today for improved range and accuracy.

24.49
  • High strength, low weight
  • Polymer body and metal teeth
  • For Tokyo Marui NGRS SCAR-L/H

FPS Softair brings you the Polymer Piston w/Steel Tooth Rack for Marui NGRS SCAR-L/H, featuring a technopolymer body and a full rack of steel teeth for a good combination of high strength and low weight.

The loaded technopolymer assures great mechanical resistance and dimensional precision. The tooth rack was manufactured through the use of MIM (Metal Injection Moulding) technology since this production process guarantees dimensional accuracy and sturdiness equal to those of solid machining.

The metal injected is SAE 4650 steel, currently considered the best for this type of use. The sliding guides are designed to minimize friction and hold the lubricant for a long period of time, so you can be safe in the knowledge that your TM NGRS SCAR will have reliable and long-lasting functionality.

21.99
  • Polymer piston with 4 steel teeth
  • Piston head with O-ring pre-installed
  • Compatible with V2 gearbox M4/AR-15 AEG

If you have stripped your piston and need a replacement, here ya go! The KRYTAC Piston & Piston Head Assembly V2 for M4/AR-15 AEG is a replacement original parts set including a polymer piston with a 4-tooth steel rack and a polymer piston head with pre-installed O-ring. The set is designed for the Krytac Trident AEG series but is compatible with M4/AR-15 AEGs equipped with a version 2 gearbox. 

24.49
  • Steel tooth rack
  • 14 Tooth piston 
  • Fits most Airsoft AEGs

If you've had a piston failure, G&G Armament to the rescue! This 14-tooth AEG piston is compatible with most Airsoft AEGs (NOT PSG-1 or some SR-25s) and boasts a full steel tooth rack for maximum strength. A great replacement part to have around just in case, this piston takes standard AEG piston heads and the tooth rack is full-width, ideal for most sub-350FPS builds. 

18.49
  • High strength, low weight
  • Carbon fibre and metal teeth
  • For version 2 & version 3 gearbox

FPS Softair brings you a high-quality piston with a carbon fibre-reinforced technopolymer body and a full rack of steel teeth for a good combination of high strength and low weight. This is compatible with Tokyo Marui-style Version 2 and Version 3 gearboxes.

This Superlight piston reduces friction for an increased rate of fire, in addition to the overall reliability of your rifle. The sliding guides are designed to minimize friction and retain the lubricant for a long period of time and the rack seat is decentralized to favour the coupling between the piston teeth and those of the sector gear.

16.99
  • Reinforced polymer
  • Increase RPS and improve FPS consistency
  • Pull Stronger springs without piston/rack damage

Take your AEG to the next level with a revolutionary Piston. It has been redesigned to ensure a premium performance. The Nightstalker piston has eradicated all the common weaknesses of an AEG piston to create an almost flawless design. Firstly, it has been constructed from a reinforced polymer, one that can pull stronger springs without causing damage to itself. It also has a drop-in angle of engagement (AOE) which helps distribute the force evenly on the teeth of the piston rack, reducing the risk of premature wear or breakage.

The stress points of the piston have been revised to spread the wear between 3 contact points and drastically reduce the load on each tooth. Another upgrade is that the piston rails have been revised to reduce friction, this removes the wobbling of the piston against the gearbox and keeps it completely straight. All these revisions and enhancements make for a consistent improvement in FPS and performance. Make your AEG premium, for real.

24.49
  • High strength, low weight
  • Polymer body and metal teeth
  • For TM NGRS M4 variants only

FPS Softair brings you a super high quality M4 piston with a technopolymer body and a full rack of steel teeth for a good combination of high strength and low weight. This is compatible with Tokyo Marui NGRS M4 gearboxes, aka the Version 9 gearbox. Please note, this piston is not compatible with the TM NGRS SCAR-L or SCAR-H. 

The loaded technopolymer assures great mechanical resistance and dimensional precision. The rack was manufactured through the use of MIM (Metal Injection Moulding) technology since this production process guarantees dimensional accuracy and sturdiness equal to those of solid machining.

Currently considered the best for this type of use, the metal injected is SAE 4650 steel. The sliding guides are designed to minimize friction and hold the lubricant for a long period of time, so you can be safe in the knowledge that your AEG will have reliable and long-lasting cycle functionality.

18.49
  • Carbon reinforced polymer
  • Full steel toothrack
  • For version 2 and version 3 gearboxes

If you are looking for an excellent replacement piston for your AEG then look no further! The RetroArms 14.5 Steel Tooth Piston is the perfect piston upgrade. Its injection moulded carbon-reinforced polymer ensures premium quality and consistency, the fourteen-and-a-half steel teeth are highly wear-resistant and greatly extend the lifespan, and it also keeps your Airsoft rifle performing up to standards. The half-tooth allows the piston to be picked up by the gears more easily and minimises the chance of the teeth bouncing off the gear and causing internal damage.

The RetroArms 14.5 Steel Tooth Piston is great for high-performance builds and is designed for version 2 and version 3 gearboxes. Make your AEG premium with this simple upgrade piece!

About Our Airsoft Pistons

From increased strength and durability to improved angle of engagement, our huge range of airsoft pistons is the best place to start if you’re looking for an upgrade. Only stocking the best brands in the business, explore pistons from ASG, Modify and more.

The piston in an airsoft electric gun is the driving force behind the air required to launch the BB out of the barrel. It meshes with the teeth on the gears to travel backwards, compressing the spring which in turn launches the piston forward to compress the air in the cylinder and force the BB out of the barrel. 

Your AEG piston is under heavy use every time the gearbox cycles, so it needs to be made from a tough material to last for the tens of thousands of shots you would expect out of an AEG. Though not essential, having a robust material like steel teeth or a steel rack on the piston helps to ensure long-lasting performance. 

Explore our airsoft pistons online today or explore our wider range of AEG internal parts