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£6.55
  • 170m/s or 557FPS
  • Double Progressive
  • For Airsoft Electric Guns

This Ultimate Upgrade Spring is designed for Airsoft Electric Guns, and is double progressive, meaning that there is variable spacing between the loops, which improves the response that the Spring gives when used with a High Torque Motor. Rated at 170M/S this Spring should yield ~557FPS w/ 0.2g BBs, but this of course depends on your exact internals. ASG recommend that Ultimate Upgrade Components are used in conjunction with this spring.

£8.49
  • Progressive Coiling
  • Coloured Rating Tip
  • SiCr Zinc Coated Steel

Produced to an incredibly high quality with the best mil-spec steel rated SiCr. Every spring no matter the rating has gone through a full quality control test by ASG for your peace of mind that you are fitting a reliable spring. 

£8.49
  • Progressive Coiling
  • Coloured Rating Tip
  • SiCr Zinc Coated Steel

Produced to an incredibly high quality with the best mil-spec steel rated SiCr. Every spring no matter the rating has gone through a full quality control test by ASG for your peace of mind that you are fitting a reliable spring. 

£8.49
  • Progressive Coiling
  • Coloured Rating Tip
  • SiCr Zinc Coated Steel

Produced to an incredibly high quality with the best mil-spec steel rated SiCr. Every spring no matter the rating has gone through a full quality control test by ASG for your peace of mind that you are fitting a reliable spring. 

£8.49
  • Progressive Coiling
  • Coloured Rating Tip
  • SiCr Zinc Coated Steel

Produced to an incredibly high quality with the best mil-spec steel rated SiCr. Every spring no matter the rating has gone through a full quality control test by ASG for your peace of mind that you are fitting a reliable spring. 

£8.49
  • Progressive Coiling
  • Coloured Rating Tip
  • SiCr Zinc Coated Steel

Produced to an incredibly high quality with the best mil-spec steel rated SiCr. Every spring no matter the rating has gone through a full quality control test by ASG for your peace of mind that you are fitting a reliable spring. 

£8.49
  • M95 Spring
  • For standard AEG Gearboxes
  • Provides approximately 95 m/s (310FPS) with 0.2g BB

This M95 spring from Big Dragon fits any AEG gearbox which takes standard AEG springs. The spring is a non-linear design, reducing strain on the gearbox shell. Once installed, assuming the air seal of your gearbox is good, the spring should provide around 95 m/s or 310 FPS muzzle velocity on 0.2g BBs. This spring is ideal to drop the power of your gun to allow it to be used for CQB, or for a gearbox built from scratch. 

£9.99
  • Produces 95m/s
  • GB Rated Spring
  • Perfect Spare Part

A replacement spring for the ASG - Scorpion Evo Airsoft AEG, designed to produce a power output of 95m/s on a Stock Scorpion Evo Rifle. 

£9.99
  • For Airsoft AEG
  • Great Spare Part
  • Wide Range of Powers

A replacement spring for your Airsoft AEG weapons.

£9.99
  • For Airsoft AEG
  • Great Spare Part
  • Wide Range of Powers

A replacement spring for your Airsoft AEG weapons.

£9.99
  • Durable & Strong
  • Highly Consistent
  • Irregular Pitch Coiling

A high-performance spring for Airsoft Electric Guns, which is compatible with all Marui (and Marui compatible) AEGs (not including the PSG-1).

£9.99
  • Upgrade spring
  • 120 m/s - 393 FPS
  • For TM PSG-1 only

This Guarder upgrade spring is compatible with the Tokyo Marui PSG1 gearbox and provides approximately 120 m/s or 393 FPS muzzle velocity on a 0.2g BB. The spring is made from tempered Si-Cr alloy steel wire to provide the strength and resistance necessary.

£9.99
  • Upgrade spring
  • 150 m/s - 492 FPS
  • For TM PSG-1 only

This Guarder upgrade spring is compatible with the Tokyo Marui PSG1 gearbox and provides approximately 150 m/s or 492 FPS muzzle velocity on a 0.2g BB. The spring is made from tempered Si-Cr alloy steel wire to provide the strength and resistance necessary.

£12.99
  • Durable & Strong
  • Highly Consistent
  • Irregular Pitch Coiling

A high-performance spring for Airsoft Electric Guns, which is compatible with all Marui (and Marui compatible) AEGs (not including the PSG-1).

£109.99
  • Full gearbox tune-up kit
  • For AK47/74 AEG with Version.3 gearbox
  • M120 spring provided

The Guarder tune-up kit is intended for those building a gearbox from scratch, or those who want a smoother running gearbox in their AK47/74 AEG. The set includes an M120 main spring, bearing spring guide, polycarbonate piston, vented piston head, shims, 6mm steel bushings, air seal nozzle, enhanced tappet plate, steel gears, chromium-plated cylinder and stainless steel cylinder head. No longer do you have to mess around figuring out which parts work best with others, just throw this kit inside your gearbox and save yourself the compatibility worries!

£4.99
  • 295/328FPS
  • Recomended AEG Use
  • Fits 99% of Gearboxes

A highly affordable spring to get your Airsoft AEG build back in action. This spring is the go-to average for anyone on a budget and looking for a quick build setup.

£9.99
  • For Airsoft AEG
  • Great Spare Part
  • Wide Range of Powers

A replacement spring for your Airsoft AEG weapons.

£9.99
  • For Airsoft AEG
  • Great Spare Part
  • Wide Range of Powers

A replacement spring for your Airsoft AEG weapons.

£9.99
  • For Airsoft AEG
  • Great Spare Part
  • Wide Range of Powers

A replacement spring for your Airsoft AEG weapons.

£9.99
  • Durable & Strong
  • Highly Consistent
  • Irregular Pitch Coiling

A high-performance spring for Airsoft Electric Guns, which is compatible with all Marui (and Marui compatible) AEGs (not including the PSG-1).

£10.99
  • For Airsoft AEG
  • Great Spare Part
  • Wide Range of Powers

A replacement spring for your Airsoft AEG weapons.

£10.99
  • For Airsoft AEG
  • Great Spare Part
  • Wide Range of Powers

A replacement spring for your Airsoft AEG weapons.

£10.99
  • For Airsoft AEG
  • Great Spare Part
  • Wide Range of Powers

A replacement spring for your Airsoft AEG weapons.

£12.99
  • For Airsoft AEG
  • Great Spare Part
  • Wide Range of Powers

A replacement spring for your Airsoft AEG weapons.

£12.99
  • For Airsoft AEG
  • Great Spare Part
  • Wide Range of Powers

A replacement spring for your Airsoft AEG weapons.

£12.99
  • For MARUI Recoil
  • High Quality Steel
  • Consistent Results

A high quality steel-made spring for Tokyo Marui Recoil gearboxes, manufactured by Laylax and should yield you around 90m/s or 100m/s (depending on which spring you choose) with a 0.2g BB.

£12.99
  • Durable & Strong
  • Highly Consistent
  • Irregular Pitch Coiling

A high-performance spring for Airsoft Electric Guns, which is compatible with all Marui (and Marui compatible) AEGs (not including the PSG-1).

£12.99
  • Durable & Strong
  • Highly Consistent
  • Irregular Pitch Coiling

A high-performance spring for Airsoft Electric Guns, which is compatible with all Marui (and Marui compatible) AEGs (not including the PSG-1).

£109.99
  • Full gearbox tune-up kit
  • For M4/AR15 AEG with Version.2 gearbox
  • M120 spring provided

The Guarder tune-up kit is intended for those building a gearbox from scratch, or those who want a smoother running gearbox in their M4/AR15 AEG. The set includes an M120 main spring, bearing spring guide, polycarbonate piston, vented piston head, shims, 6mm steel bushings, air seal nozzle, enhanced tappet plate, steel gears, chromium-plated cylinder and stainless steel cylinder head. No longer do you have to mess around figuring out which parts work best with others, just throw this kit inside your gearbox and save yourself the compatibility worries!

About Our Airsoft Electric Springs

The spring is the absolute core of how your AEG works, and is the first thing a lot of people go to when looking to change their output FPS. If you're looking to downgrade your gun (reduce how hard it shoots) then this is a good way to go.

A higher spring will put more strain on the components inside your gearbox, so we would recommend attempting to boost FPS through improving air-seal and other components such as your HOP Units/Rubbers, to increase output power without adding more stress internally.

Our AEG spring range is crafted using strong, durable components, helping you to supercharge your shot.

Upgrade your airsoft with our range of internal electric parts, spring internal parts and gas blowback parts, and get next day delivery on your purchase with Patrol Base