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£0.99
  • Nut Not Included
  • Standard Component
  • Apply Threadlock To Screw

RetroArms - Piston Head Screw - Silver, a simple replacement screw for anyone out there who has an old worn out screw from repeating maintenance or had a slip up during assembly. There is no locking nut with this screw, so if your internal pistol and head use one you will need to re-cycle your old or source a new one from a local source.

£1.99
  • For GHK G5
  • Very Important Part
  • Stopping Point For Nozzle

A very vital piece of a GHK G5 Gas Blowback Rifle, and is an ideal spare part to own in case the worst should happen come game day.

£9.99
  • Thick Head
  • Corrects AOE
  • Bearing Braced

Designed to create a better and more silent airflow within your Airsoft AEG gearbox.

£11.99
  • Robust Polymer
  • Ideal Replacement
  • Ventilated Piston Head

A Polymer topped piston head with alloy components, designed to have built-in pressure bearings and reduce friction from the spring. 

£12.99
  • Pressure Bearings
  • Optimal Compression
  • Ventilated Piston Head

A Polymer topped piston head with alloy components, designed to have built-in pressure bearings and reduce friction from the spring. 

From £13.99
  • Air-Tight
  • Lightweight
  • Parts Included

A range of Piston Heads from Modify, which offer either Aluminium or Polycarbonate construction, made to be extremely durable and air-tight.

£64.99
  • 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.

£64.99
  • 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.

£64.99
  • 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.

£64.99
  • 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.

£64.99
  • 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.

£64.99
  • 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.

£69.99
  • 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.

£69.99
  • 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.

£69.99
  • 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.

£69.99
  • 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.

£69.99
  • 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.

£69.99
  • 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.

£69.99
  • 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.

£69.99
  • 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.

£69.99
  • Complete Set
  • For SP120+ Springs
  • Electrolysed Plating

A complete Cylinder Set for M16A1/VN series electric replicas, which is to be used with an SP120 spring or higher.

£9.99
  • CNC Machined
  • 8 Port Ventilation
  • Bearing Spring Support

For those who want a reliable Airsoft AEG gearbox, don't scrimp on a cheap piston setup as this is the part that takes a lot of abuse every time you pull your trigger.

£12.99
  • Lightweight
  • Alloy Piston Head
  • 6 Hole Ventilation

Designed for use in Marui's Ver.2 SOPMOD M4 AEG, this is an incredibly smart piston head designed to hold your spring in place within the piston. 

£29.99
  • Alloy Head
  • Lightweight
  • 6 Hole Ventilation

An incredibly smart piston head designed to hold your spring in place within the piston. The collar you see in the photos holds your spring straight when under compression and when the piston is released.

£44.99
  • For Striker S1
  • 8 Ventilation Holes
  • Stainless Steel Construction

A purpose built Piston, designed for use with the ARES AMOEBA Striker S1 series of Bolt Action Airsoft Spring Sniper Rifles, to improve their performance durability.

As you would probably expect, the Piston Head sits at the front of the Piston and is the part that actually compresses the air inside the Cylinder. It requires a good seal between the Cylinder and edge of the Piston Head as you would expect but still needs to be able to move freely. Some Piston Heads allow air in the front of them to 'inflate' the O-Ring as it travels forward which help improve compression/air seal, without constantly pressing on the side of the Cylinder. Some are mounted on bearings to assist with free movement and prevent snagging inside the Cylinder.