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From 15.49
Was 18.99
Save 3.50
  • 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.

21.49
RRP 23.99
Save 2.50
  • 3rd Generation Mosfets
  • Trigger Protecting MOSFET
  • Multifunctional AEG Controller

Generation 3 Micro Computer Controller Chip Set designed to add a huge variety of functionality to Airsoft AEG. The chip is built to be as compact as possible, requiring the smallest amount space possible, and is specially coated to the Military Specification (Mil-Spec) MIL-V-173C.

57.19
Was 71.49
Save 14.30
  • Complete switch assembly
  • Includes KRYTAC MOSFET
  • Pre-wired and ready to install

If you are experiencing issues with semi-automatic as your AEG gets older, the likelihood is your switch assembly/trigger contacts have become corroded and need replacing. Fortunately KRYTAC are here to provide a complete pre-wired switch assembly, complete with their in-line MOSFET which provides protection to the circuitry and prevents the AEG from firing if the battery voltage drops too low. The assembly comprises of the trigger contacts, MOSFET, automotive fuse, male Deans connector, and spade connectors, all wired together and ready to go once installed.

124.49
Was 149.99
Save 25.50
  • Trigger Replacement
  • Optical Trigger Adjust
  • Highly Advanced System

A drop in MOSFET Kit designed for Rear Wired Version 2 Gearbox, which are typically seen in M4 Variant Rifles. This variation of the Kit comes with the MOSFET Unit and the USB-Link. This light version of the kit does not include the tactical programming card.

149.99
  • Trigger Replacement
  • Optical Trigger Adjust
  • Highly Advanced System

A drop in MOSFET Kit designed for Rear Wired Version 2 Gearbox, which are typically seen in M4 Variant Rifles. This variation of the Kit comes with the MOSFET Unit and the USB-Link. This light version of the kit does not include the tactical programming card.

0.99
  • Large Tamiya connector
  • Gun end or Battery end
  • Useful spares for a tech

The Patrol Base Large Tamiya Connector is an essential spare to have if you are the techy type of Airsofter who cannot resist customising their kit, but could also be useful for anyone who participates in RC hobbies. The set includes the connector and the outer plastic shroud, and is available as either a set to mount to your gun (Gun end) or a set to mount to your battery (Battery end).

0.99
  • Large Tamiya connector
  • Gun end or Battery end
  • Useful spares for a tech

The Patrol Base Large Tamiya Connector is an essential spare to have if you are the techy type of Airsofter who cannot resist customising their kit, but could also be useful for anyone who participates in RC hobbies. The set includes the connector and the outer plastic shroud, and is available as either a set to mount to your gun (Gun end) or a set to mount to your battery (Battery end).

2.49
  • Replacement motor connectors
  • Female "spade" connector x 2
  • Attaches to your AEG wiring to connect the motor

If you have been doing a bit of DIY, and you messed up and ripped off one of your motor connectors, no need to worry! Likewise if you bought a rubbish AEG with soldered motor contacts and you want a spicy new motor inside. The Motor Connectors set from Gate is a replacement set for the spade connectors which connect your motor to the AEG wiring system. This is a set of female connectors and they are intended to connect to the male spade connectors present on most Airsoft motors.

2.49
  • For GATE MOSFETs
  • For MERF 3.2 & ACS
  • Low Resistance Wiring

A programming button designed to give you a bit more control of your GATE MOSFET, which is also compatible with other brands.

3.99
  • Unique Fitting
  • Springs Included
  • Steel Construction

Broke or lost your old trigger whilst carrying out an upgrade or service? We have spares for a range of Airsoft AEGs.

3.99
  • Pack of 5
  • Glass Tube Fuses
  • Ideal For Spare Parts

A convenient pack of 5 x glass tube fuses of selectable amperage.

3.99
  • All 9cm Long
  • Various Colours
  • Set Of 21 Tubes

A heat-shrink kit designed to give you all the heat-shrink you'll need when working on a project gun or replacing wires. The heat-shrink is constructed from PVC, and shrinks in size when heated, designed to protect wires and other electrical components.

3.99
  • For AK HOPs
  • Polymer Made
  • Ideal Spare Part

A tough Polymer C-Clip for AK style HOP units.

3.99
  • Replacement trigger contacts
  • For Specna Arms AR36 AEG series
  • Replaces worn out trigger contacts

If you are having trigger trouble with your Specna Arms AR36 AEG, the solution is here! This unit is a replacement original part for the SA-G series of AR36 AEG rifles and will require disassembly of the gearbox to install, and soldering, as such it is only recommended for experienced techs and advanced users.

4.99
  • Perfect Spare Set
  • All Metal Shims Set
  • Set of 0.1 and 0.2 Thin Shims

A pack of shims with two degrees of thickness, useful for ensuring your gearbox turns over as smooth as possible.

4.99
  • Gearbox shell screws
  • For Version 3 RetroArms Gearbox
  • Replacement original parts

If you dropped a screw and it was gobbled up by the carpet monster, we have all been there!

4.99
  • For Marui M16
  • Spring/Screw Inc.
  • Polymer Construction

A Polymer constructed Safety Catch from Modify, for Marui branded M16 family AEGs.

4.99
  • Replacement screws
  • For Version 3 gearbox motor cage
  • Replace your lost bits!

If you have misplaced a screw from your motor cage during upgrading/maintaining your version 3 gearbox, no need to hunt for the perfect screw! This screw set from Specna Arms provides all the screws necessary to attach your motor cage to the gearbox and secure the motor inside the cage.

4.99
  • Polymer construction
  • For CM.041K and CM.041PDW
  • Replacement original CYMA part

If you have damaged your HOP-up unit and are looking for a replacement, CYMA are now offering their original HOP-up units as an aftermarket part. This unit is for the CM.041K and CM.041PDW AEGs, but will not fit the full sized CM.041 AEGs. The unit is constructed from polymer and comes complete other than the HOP-up rubber. The HOP unit, slider, c-clip and HOP nub are all included, so if you have lost or damaged one of these bits you are in luck!

5.49
  • Gold Plated 
  • Includes Heat Shrink
  • 10 Connectors Per Pack

If you have a damaged wire, snapped motor connector or just want to improve your electric conductivity then this pack is ideal.

5.99
  • High Quality Finish
  • Great For Rebuilding
  • Every Spring Needed

Set of several springs for multiple purposes from anti-reveral latch springs, trigger springs, tappet plate springs and more.

5.99
  • O Type Fitting
  • Precise Cut Teeth
  • Friction Only Fitting

A replacement O type AEG motor pinion gear, intended as a spare, replacement or upgrade component. 

5.99
  • Double Rib
  • ~60 Degree
  • Good Air Seal

A series of HOP Buckings from Modify, one for all models of AEGs and another for the Modify Hybrid Inner Barrels.

7.49
  • Chrome Finish
  • Includes Fitting Screw
  • For Version 3 Gearboxes

A vital spare for Version 3 gearboxes.

7.49
  • Includes Bucking
  • For Cold Weather
  • For Marui Style AEG

Will fit almost all Airsoft AEG on the market. The rubber is made from Silicon and features a 50 Degree Nub, applying a moderate amount of hop to BBs. 

7.49
Was 9.49
Save 2.00
  • Screw Fit Installation
  • Improve Consistency
  • Reduce Barrel Movement

This Polymer constructed piece is designed to screw into your Outer Barrel Assembly, to lock your Inner Barrel in place and removing any motion that is is able to have. This will help improve accuracy and consistency by stopping the Inner Barrel from wobbling as the BB travels through it. There is an option available for most major platforms, and is an absolute must-have piece for those seeking perfection in their rifles.

7.49
Was 9.49
Save 2.00
  • Screw Fit Installation
  • Improve Consistency
  • Reduce Barrel Movement

This Polymer constructed piece is designed to screw into your Outer Barrel Assembly, to lock your Inner Barrel in place and removing any motion that is is able to have. This will help improve accuracy and consistency by stopping the Inner Barrel from wobbling as the BB travels through it. There is an option available for most major platforms, and is an absolute must-have piece for those seeking perfection in their rifles.

7.49
  • Hop Rubber
  • Cold Resistant
  • Keep your AEG shooting far in winter

Replacement HOP rubber for AEGs using TM AEG hop units. This will work in the vast majority of AEG Rifles, Submachine Guns and Support Guns. Perfect to replace a torn rubber or to get ahead of the seasons and have your AEG perform well in the icy cold.

7.49
  • Replacement trigger contacts
  • For Version 2 Gearbox
  • Fixes semi-auto issues

Have you been hammering the trigger like your life depends on it? If you have, and you have worn out your trigger contacts, Specna Arms have a convenient pre-wired replacement to save you the soldering time! This Microswitch trigger contact set includes the microswitch trigger box with wiring leading to spade connectors for your motor, and a mini-tamiya connector for your battery. This set is designed for rear wired M4/AR15 AEGs with a version 2 gearbox, and will require the gearbox to be disassembled in order to install.

8.49
  • 5 Clips Per Pack
  • Fits Mix Of Hop Units
  • Can Be Shaped With Knife

ASG Ultimate barrel locking clips are sold at 5 per pack. Ideal replacement for any loose or fragile barrel clips. 

Level up your AEG and get CQB ready

Browse our full spectrum of AEG internal parts, including P90 parts that allow you to upgrade your electric SMG, as well as parts suitable for AEP mods and more. 

From steel airsoft motors to electric triggers, we only ever stock named brands we’ve tried and tested ourselves. Plus, if you want to make some changes to your airsoft gun, our expert technical team will be happy to support you - simply get in touch with us and let us know what you need. 

Our collection of airsoft upgrades is second to none, so why shop anywhere else? Browse online today for next day delivery.