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£5.99
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  • Good Air Seal
  • O-Ring Sealed
  • Tough Construction

An efficient and well-constructed Air Nozzle which is available for a wide range of replicas, and ensures improved durability and smooth operation.

£7.99
Was £9.99
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  • 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.

£7.99
Was £9.99
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.

£7.99
Was £9.99
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.

£14.99
  • Fits Any AEG
  • Ultra Compact
  • Protects Trigger Contact

An ultra compact Generation 3 MOSFET built to be as compact as possible, requiring the smallest amount space possible, and is water resistant.

£1.99
  • Less wear than O-rings
  • Lower contact pressure
  • More consistent pressure

For a sturdy upgrade to your AEG the FPS X-Ring is a piston head seal with a quadrilobate section, which during dynamic stresses are not subject to seal rounding.

X-Rings have less wear than O-Rings as they require less radial pre-stress which results in lower contact pressure.
A lubricant reservoir can be created between the sealing lips using silicone.

Installing this ring will optimise the sealing effect thanks to a better pressure distribution due to the square section.
The X-Ring eliminates any negative effects due to the closing line of the mould, as this is located in the groove between the two lips.

£1.99
  • Spring set for AR36 Version 3 gearbox
  • All springs except mainspring included
  • Fix up your old AR36 or build a gearbox!

If you are building a version 3 AR36 gearbox or you have an old AR36 AEG that needs a refit, this spring set will be useful! The set includes all the springs needed to complete a version 3 gearbox for AR36 AEGs except for the mainspring (the spring that provides the power). Maybe you have lost a spring, or your tappet spring got chewed up after a long and hard life? This spring set should give you all you need to get your AR36 doing its dirty work once again!

£2.99
  • 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.

£3.99
  • Great replacement piece
  • For version 2 gearboxes
  • Keep your AEG safe!

If you're having issues with your AEG, and being able to pull the trigger in safe then it is likely your safety lever is bust! The G&G Armament Trigger Safety Lever For V2 Gearbox is the replacement part for you, a new safety lever will ensure that the trigger cannot be depressed while your AEGs safety is engaged.

This part is constructed from alloy and is compatible with all version 2 gearboxes. It includes the spring and the screw so you can install it all together. Be warned though, it can be a techy repair and we only recommend that professionals attempt it!

£4.99
  • Alloy construction
  • "Milspec" trigger shape
  • Compatible with most M4/AR-15 AEGs

If you have worn out your trigger or you're looking for a milspec trigger to replace a speedyboi flat trigger, this should do the trick! The Krytac Trident Trigger for M4/AR-15 AEG is constructed from alloy and is patterned after the standard curved "Milspec" trigger found on the M4A1 rifle, MK18 MOD.0 and MOD.1 as well as practically any other M4/AR-15 used in military service in the real world.

The trigger is designed for the version 2 gearbox found in the vast majority of M4/AR-15 AEGs, meaning this trigger should work in practically any M4/AR-15 AEG but will require the gearbox to be opened up to install it. 

£4.99
  • Includes fitting screw
  • Great replacement part
  • For version 2 gearboxes

If you've had a cut-off lever failure or you like to keep parts on hand just in case the worst happens, the G&G Armament Cut Off Lever For V2 Gearbox is perfect. This is a replacement original part constructed from alloy, compatible with most version 2 gearboxes on the market.

The cut-off lever is a piece that sits between your trigger and sector gear and serves to interrupt or disconnect the trigger once your gearbox has made a complete cycle, very useful!

£9.99
  • Carbon fibre construction
  • Reinforced build
  • Strong yet flexible

FPS Softair brings us a Carbon Fibre Reinforced AEG Tappet Plate for use with version 2 gearboxes. It is specially formulated to be strong yet flexible enough to bend slightly.

The plate is constructed from extremely lightweight polycarbon and is designed to be attached to the air nozzle and sector gear. This process controls the feeding of BBs from the magazine into the hop up chamber.

£14.99
  • CNC Aluminium construction
  • Double O-ring configuration
  • Compatible with V2 & V3 gearboxes

If you're after a high-performance build, then the GATE EON PROTECTOR Cylinder Head belongs inside! This CNC aluminium cylinder head is compatible with version 2 and version 3 gearboxes and is equipped with a pair of O-rings around its circumference intended to seal the gap between the cylinder and head for maximum air retention and efficiency.

Its robust CNC aluminium construction pairs perfectly with the shock-absorbing rubber pad pre-installed on the rear of the cylinder head, reducing impact stress on the gearbox shell, piston head and cylinder head for an increased AEG lifespan. If you're upgrading your V2 or V3 gearbox or building a masterpiece from the ground up, the GATE EON PROTECTOR Cylinder Head is a superb choice!

£17.99
  • 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. 

£129.99
  • Brushless motor
  • 34K, 39K & 48K RPM speeds available
  • Short Shaft - For AR36, AUG, AK & SG55x AEGs

If you have a high-speed or DMR build planned with an AR36, AK, SG55x or AUG base gun, the Specna Arms DARK MATTER™ Brushless Motor; Short belongs inside! This beastly brushless motor is top-of-the-line in Specna's new motor range, offering a high-quality CNC aluminium housing with powerful brushless motor technology inside. This is the short shaft variant designed for AR36, AK, SG55x and AUG AEGs and is offered in 34K, 39K or 48K RPM flavours, ideal for any build objective which demands extreme speed and torque!

DARK MATTER™ motors are Brushless Motors, similar to the legendary Warhead Industries examples and boasting lower heat build-up, higher torque-to-weight ratio, improved reliability via reduced friction and significantly reduced operating noise when compared to conventional brushed motors. While installing a DARK MATTER™ motor in your AEG will make it a beast, the more important aspect is keeping it performing in the long term. As is always the case with super strong motors, we only recommend the Dark Matter series to those with the technical know-how to ensure their setup can handle it!

£129.99
  • Brushless motor
  • 34K, 39K & 48K RPM speeds available
  • Short Shaft - For AR36, AUG, AK & SG55x AEGs

If you have a high-speed or DMR build planned with an AR36, AK, SG55x or AUG base gun, the Specna Arms DARK MATTER™ Brushless Motor; Short belongs inside! This beastly brushless motor is top-of-the-line in Specna's new motor range, offering a high-quality CNC aluminium housing with powerful brushless motor technology inside. This is the short shaft variant designed for AR36, AK, SG55x and AUG AEGs and is offered in 34K, 39K or 48K RPM flavours, ideal for any build objective which demands extreme speed and torque!

DARK MATTER™ motors are Brushless Motors, similar to the legendary Warhead Industries examples and boasting lower heat build-up, higher torque-to-weight ratio, improved reliability via reduced friction and significantly reduced operating noise when compared to conventional brushed motors. While installing a DARK MATTER™ motor in your AEG will make it a beast, the more important aspect is keeping it performing in the long term. As is always the case with super strong motors, we only recommend the Dark Matter series to those with the technical know-how to ensure their setup can handle it!

£129.99
  • Brushless motor
  • 34K, 39K & 48K RPM speeds available
  • Short Shaft - For AR36, AUG, AK & SG55x AEGs

If you have a high-speed or DMR build planned with an AR36, AK, SG55x or AUG base gun, the Specna Arms DARK MATTER™ Brushless Motor; Short belongs inside! This beastly brushless motor is top-of-the-line in Specna's new motor range, offering a high-quality CNC aluminium housing with powerful brushless motor technology inside. This is the short shaft variant designed for AR36, AK, SG55x and AUG AEGs and is offered in 34K, 39K or 48K RPM flavours, ideal for any build objective which demands extreme speed and torque!

DARK MATTER™ motors are Brushless Motors, similar to the legendary Warhead Industries examples and boasting lower heat build-up, higher torque-to-weight ratio, improved reliability via reduced friction and significantly reduced operating noise when compared to conventional brushed motors. While installing a DARK MATTER™ motor in your AEG will make it a beast, the more important aspect is keeping it performing in the long term. As is always the case with super strong motors, we only recommend the Dark Matter series to those with the technical know-how to ensure their setup can handle it!

£6.99
  • Increase power and efficiency
  • CNC Ergal construction
  • For A&K M249 Series AEGs

Increase the power and air efficiency of your A&K M249 Series AEG with an upgraded nozzle and O-ring. With its CNC Aluminium Ergal construction and smooth anodized finish, this will drastically improve your AEG's performance compared to the standard polymer nozzle included with the A&K M249 AEG.

The included O-rings provide a far superior air seal. For the best results, make sure to use pure silicone oil to lubricate your cylinder head's nozzle stem before installing this nozzle.

£8.99
  • Shortens trigger travel
  • Super speedy semi-auto
  • For G&G M4/AR-15 AEGs

If you want to ramp up your semi-auto speed and you run a G&G, you need this! The Airtech Studios STC™ Speed Trigger Converter for G&G AEGs is designed to reduce trigger travel to a hair, allowing you to seriously spam semi in the most efficient way possible.

The STC is designed to fit a wide range of G&G AEGs (full compatibility list on Airtech Studios Website) and makes use of your original trigger, reducing trigger travel by 80%! This set will require opening the gearbox to install so we don't recommend it for newcomers. If you're a CQB player needing an edge, this will do it!

£12.99
Was £17.99
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  • 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.

£14.99
  • Improves air seal and efficiency
  • CNC aluminium Ergal construction
  • Double O-ring and ball bearing set

Upgrade your AEGs piston head to improve air seal and increase the efficiency of airflow through the cylinder. This piston from FPS Softair has ports on the front to push out the O-ring as it moves forwards, this ensures that all of the air in the cylinder is being pushed out to propel the BB.

Constructed from CNC aluminium Ergal, which has been anodised, the piston head features a smooth precise surface. The piston head has ports on the front to push out the O-ring as it moves forwards, this ensures that all of the air in the cylinder is being pushed out to propel the BB.

The ball bearings help reduce tension created by the spring compressing and expanding, this combined with a ball bearing spring guide is the optimal set up to keep your spring in good shape.

This is the most advanced version with 6 ventilation holes for higher speed and rate of fire, double O-ring and ball-bearing. This head is designed for version 2 and 3 gearboxes but may fit other types.

£119.99
  • Advanced optical MOSFET
  • Programmable fire modes
  • For TM-based P90 AEGs

If you're running a P90 and want to spice it up a notch, the Perun Optical MOSFET/ETU for P90 AEG is what you need to take your P90 to the next level. This advanced MOSFET/ETU uses optical sensors to speed up your P90 and provide programmable functions, including burst mode, binary trigger, adjustable active braking, adjustable pre-cocking, trigger sensitivity adjustment and compatibility with dual sector gear setups. 

Make no mistake, this MOSFET rivals the incredible Gate TITAN and ASTER series in the functions and performance it provides. Unlike the Gate 'fets, the Perun is designed specifically for TM P90-based AEGs, meaning no compatibility worries and a relatively easy installation process. If you want your P90 to shoot like an upgraded M4 platform, this is how you do it!

£1.99
  • Polymer construction
  • Suits high-speed builds
  • Friction fitting & locking

Increasing the rate of fire on your airsoft rifle sometimes causes it to misfeed, resulting in dry firing in builds with a very high rate of fire. A sector gear delay will solve your feeding problems 99.9% of the time with a simple add-on.

This sector gear clip increases the time it takes for the air nozzle to cycle. Delaying the cycle improves BB feeding by allowing the air nozzle to be retracted from the hop-feed for a longer duration.

This tiny add-on could instantly transform your AEG if it has been suffering from high rate of fire issues.

Although this is designed to be a perfect fit, it is recommended that this be permanently fixed in place using superglue, after testing to prevent it from potentially loosening over time.

£3.99
Was £7.99
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  • O-Ring Sealed
  • 20.09mm Long
  • Improved Air Seal

A replacement or upgrade air nozzle for Airsoft electric SMG-5Ks.

£4.99
  • Replacement original parts
  • For CYMA CM.098 SR-25 AEG
  • Fix up your old AEG!

If your selector switch is damaged or you lost a bit during maintenance this set can be a lifesaver! The CYMA Ambidextrous Fire Selector Gears for CM.098 is a replacement original part set for the CM.098 series of SR-25 AEGs and includes the internal selector gears and axis for the CM.098 ambidextrous selector switches. 

£5.99
  • High-density polymer
  • Improve your AEG's accuracy
  • Designed for RetroArms HOP-Up Chamber

The Airtech Studios RetroArms Rotary Centring Unit is an easy upgrade to improve your AEG's accuracy. It is constructed from high-density polymer and fits a RetroArms CNC Rotary HOP-Up Chamber Gen.2 ONLY. It prevents the hop-up unit from wobbling side to side. Once fitted, the RetroArms Rotary HOP-Up Chamber will be securely fitted in place and sit in its true centre position, which prevents BBs from swerving at a tangent when shot.

As well as removing the wobbling from your HOP-up chamber, it also provides a better air seal due to the improved tightness of the system, resulting in a more stable FPS output from your AEG. While the power upgrades for shooting BBs further are significant, they wouldn't be effective without accuracy. It's often that small parts like this are overlooked in Airsoft upgrades but they have a major impact and the Airtech Studios RetroArms Rotary Centring Unit is exactly that.

Improve the consistency and accuracy of your RetroArms CNC Rotary HOP-Up Chamber Gen.2 with a simple polymer part, the improvement will be instantly noticeable!

£9.99
  • Polymer construction
  • For version 2 gearbox
  • Replacement part

The G&G Armament G2 Tappet Plate For V2 AEG is a reinforced AEG Tappet Plate for use with version 2 gearboxes. It is specially formulated to be strong yet flexible enough to bend slightly. The plate is constructed from extremely lightweight polymer and is designed to be attached to the air nozzle and sector gear. This process controls the feeding of BBs from the magazine into the hop up chamber.

It is compatible with almost every Version 2 gearbox on the market and comes with only the tappet plate.

£9.99
  • CNC stainless steel
  • For AEG version 2 & 3 gearboxes
  • Improved performance

Upgrade your M4/M16 AEG with an FPS Softair Stainless Steel Cylinder and increase its reliability and performance. The cylinder is extremely durable and is more resistant to the constant friction caused by the piston head. The cylinder is made for use with version 2 or 3 gearboxes, compatible with Tokyo Marui derived designs and clones, with barrel lengths of 401mm to 450mm.

£12.99
  • Reduces Stresses
  • Improves Lifespan
  • For V6 / V7 Gearbox

A replacement / spare for stock or damaged bearing in Version 6 (V6) and Version 7 (V7) Gearbox. In gearbox spring guides are designed to help the spring in its correct position. 

£19.99
  • 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.

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.