Viewing 210 of 305.
117.99
Was 176.99
Save 59.00
  • Brushless motor
  • 30K, 36K, 44K or 55K RPM
  • For Ares Slim Motor Grips

If you're running an Ares AEG with a super realistic slim pistol grip and seeking a demonic motor, Specna Arms has what you need! The DARK MATTER™ Brushless Motor; Long Slim is designed specifically for Ares slim pistol grips, meaning if you like the realistically slim feel of these grips you now have a superb motor upgrade option!

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. The DARK MATTER™ range offers several speeds ranging from a potent 30K RPM up to an absolutely insane 55K RPM, though 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!

2.49
  • Steel construction
  • For D Type motor shafts
  • Ideal for upgraded motors

If your pinion gear looks worn out, this should fix it! The Battleaxe Steel Motor Pinion Gear; D Type is a replacement pinion gear made from steel and designed for D-type motor shafts. The pinion gear is the gear mounted to the motor shaft and is easy to damage if you regularly adjust motor height or tune internals. Given the price of this super-cheap replacement pinion, we recommend the techy types keep a few handy just in case!

4.99
Was 9.49
Save 4.50
  • For Marui G3 AEGs
  • Replacement Standard Nozzle
  • High Quality Replacement Part

A replacement air nozzle intended for Tokyo Marui G3 based Airsoft Electric Guns constructed from polymer, an excellent spare part designed to replace damaged air nozzles with a durable replacement.

17.99
  • 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!

22.49
  • Replacement microswitch for ARCTURUS AEG V2 gearboxes
  • Pre-wired to Deans/T-plug battery connector and spade connectors
  • Fix up your worn-out AEG!

If you are having trigger issues with your ARCTURUS M4/AR15 AEG this replacement original part set should cure it! The ARCTURUS Microswitch V2 for ARCTURUS AEG series includes the microswitch itself, a Deans/T-plug battery connector and spade connectors all wired together for a relatively simple installation procedure. The set should not require soldering to install, but as always, we recommend a certain level of confidence and expertise if you plan on installing this part.

Fixed up your faulty platform and get it back on the battlefield in no time!

24.99
Was 35.49
Save 10.50
  • Low Resistance
  • Switch Assembly
  • Mini Tamiya Plug

A complete Switch Assembly for a variety of AEGs, which includes Low Resistance Wiring with either a Mini Tamiya or Deans Connector on the end.

35.49
  • SR25 Style Gearbox
  • Fits Most SR25 Airsoft Guns
  • Cylinder, Piston, Nozzle and gears!

This SR25 Gearbox set by CYMA is designed to fit right into most SR25 / AR25 / AR10 style Airsoft Rifles / Guns. Included is a Piston, Cylinder, Gear Set, Tappet Plate, Nozzle. This GEARBOX set does not come with the shell, internals only.

41.49
  • Active braking MOSFET
  • Wiring included
  • Compatible with Microswitch V2 gearboxes

If you're running an AEG equipped with a microswitch V2 gearbox and need a faster trigger, the Cybergun JeffTron Switch Brake MOSFET with Wiring is what you need! This Active Braking MOSFET is designed to replace the original microswitch trigger system and comes pre-wired with high-quality AWG16 and AWG24 wiring. As with any internal upgrade, we suggest consulting a tech before attempting installation if this is your first time!

This MOSFET is designed to prevent the piston from stopping in a random position when you take your finger off the trigger when shooting full auto and ensures only a single cycle is completed in semi-auto. Rate of fire and trigger response should also improve thanks to electrical efficiency advantages when compared to standard microswitches. This MOSFET is only designed for microswitch trigger-equipped V2 gearboxes and isn't likely to work with standard V2 or other gearbox types.

82.49
Was 100.49
Save 18.00
  • Programmable Trigger
  • 'Speed Trigger' Included
  • For Version 2 Rear Wired

A drop-in trigger, ETU & MOSFET for Version 2 compatible rear-wired Airsoft replicas, which includes features like a programmable trigger, low battery cutoff, shot sensor and comes included with a vertical 'speed trigger'.

129.99
  • CNC 7075 T651 Aluminium
  • Cut for 8mm bushings/bearings
  • MOSFET/ETU Compatible - No mods needed

If you're working on a high-speed or high FPS build, the Delta Armory Version 2 CNC 8mm QSC Gearbox Shell will save you a lot of heartache in the long run! This ultra-strong version 2 gearbox shell is CNC machined from the best aluminium around, known as 7075 T651. This means if you're running a super strong spring or going for a dual-sector gear build, this gearbox shell has what it takes to keep running in the long term, being considerably stronger than standard alloy gearbox shells.

The QSC Gearbox shell also features radiused cylinder window corners to better distribute force and is pre-cut for Gate TITAN/ASTER, Perun Hybrid or Delta Armory ETU MOSFET systems, meaning no need to get the Dremel out to add advanced functionality. The bearing ports are 8mm in diameter, making this the perfect host for Bolster Armouries EZO Ball Bearing Bushings. If you're reaching for the stars when it comes to performance and want your build to last more than a few bursts, the Delta Armory Version 2 CNC 8mm QSC Gearbox Shell is what you need!

9.49
  • Steel construction
  • Replacement anti-reversal latch & spring
  • For Airsoft AEGs with V2 or V3 gearbox

If your AEG shoots hard you may want some hard internal parts to secure its performance in the long term! The Laylax Hard Anti-Reversal Latch for V2/V3 Gearbox is constructed from hardened steel to cope with even the most ferocious build. The set includes the anti-reversal latch itself and the ARL spring and is compatible with all Airsoft AEGs which use the Version 2 or Version 3 gearbox type.

16.14
Was 18.99
Save 2.85
  • For Version 2 Gearbox
  • Anodised Coating Finish
  • CNC Machined Aluminium

A precision quality CNC aluminium replacement/upgrade trigger for your airsoft version 3 gearbox. If you need to replace a broken trigger, or you simply want to bling up your gun, then this is the answer!

16.49
Was 23.99
Save 7.50
  • For Marui AEG
  • Thermally Treated
  • Steel Construction

A series of Steel manufactured Motor Pinion Gears for either the TOP M60/M249 or Tokyo Marui AEG motors.

70.99
  • Pre-wired MOSFET & ETU
  • Provides programmable fire modes
  • For version 2 gearboxes

If you need a replacement for your G&G MOSFET or want the latest version with its more compact design, the G&G Armament ETU/MOSFET for G2 Gearbox; Rear Wired is ideal. This set is pre-wired for relatively easy installation and is the latest G&G MOSFET 4.0 with its more compact form, saving you space in your battery compartment.

Installing this set gives your AEG the option of programming 3-round burst instead of full auto, great for those who keep running out of ammo due to a heavy trigger finger! Other features include low-voltage cutoff and cycle completion, ensuring both your gearbox and battery are kept healthy in the long term. Worth noting is that this set will require 11.1V LiPos to be used and if you're installing this in a non-G&G G2 AEG you will need to carry out modifications to ensure your setup does not pre-engage (AOE correction at the least).

64.99
  • CNC Aluminium & POM construction
  • Various O-rings included
  • Rotary style adjuster - M4/AR15 AEG & HPA compatible

If you are building out your M4/AR15 AEG for maximum performance the Gate EON HOP-up unit is probably already on your list! This precise HOP-up unit is constructed from CNC machined aluminium and is a rotary style unit which applies pressure directly to the top of the HOP-up rubber/nub to minimise side-to-side deviation.

This unit is compatible with M4/AR15 AEGs and can also be used with HPA setups thanks to the included nozzle sleeve which perfectly centres the nozzle for maximum efficiency.

41.49
  • Stainless Steel
  • 6.03mm Tight Bore
  • Increased Performance

An upgrade Airsoft 6mm BB Gun inner Barrel which is compatible with Airsoft AEG Barrel Compatible Hop-Up units.

47.49
  • Stainless Steel
  • 6.03mm Tight Bore
  • Increased Performance

An upgrade Airsoft 6mm BB Gun inner Barrel which is compatible with Airsoft AEG Barrel Compatible Hop-Up units.

47.49
  • Stainless Steel
  • 6.03mm Tight Bore
  • Increased Performance

An upgrade Airsoft 6mm BB Gun inner Barrel which is compatible with Airsoft AEG Barrel Compatible Hop-Up units.

47.49
  • Stainless Steel
  • 6.03mm Tight Bore
  • Increased Performance

An upgrade Airsoft 6mm BB Gun inner Barrel which is compatible with Airsoft AEG Barrel Compatible Hop-Up units.

52.99
  • Stainless Steel
  • 6.03mm Tight Bore
  • Increased Performance

An upgrade Airsoft 6mm BB Gun inner Barrel which is compatible with Airsoft AEG Barrel Compatible Hop-Up units.

58.99
  • Stainless Steel
  • 6.03mm Tight Bore
  • Increased Performance

An upgrade Airsoft 6mm BB Gun inner Barrel which is compatible with Airsoft AEG Barrel Compatible Hop-Up units.

64.99
  • Stainless Steel
  • 6.03mm Tight Bore
  • Increased Performance

An upgrade Airsoft 6mm BB Gun inner Barrel which is compatible with Airsoft AEG Barrel Compatible Hop-Up units.

37.99
  • Complete V2 Gearbox
  • Fits most M4/AR-15 AEGs
  • SHS Piston & reinforced tappet plate

If your M4 needs a revamp, a new gearbox is the easiest way to do it. The Delta Armory Complete Version 2 Gearbox for M4/AR-15 AEG is compatible with almost every M4/AR-15 AEG on the market and is well-equipped with reinforced parts straight out of the gate. 

This is the same gearbox used in the Delta Armory CHARLIE™ line AEGs, boasting a quick change spring guide, 18:1 steel gears running on 8mm bushings, an SHS piston with a full steel tooth rack, an SHS reinforced tappet plate and a reinforced gearbox shell with radiused cylinder window corners. 

The pre-installed spring will provide around 380 FPS when installed, so if you plan to use this gearbox for anything other than a semi-auto-locked DMR build you will need an M100, M105 or weaker spring to keep it within site limits. Thankfully, the quick change spring system makes spring swaps a breeze! Whether you are breathing new life into an old M4 AEG or you are building an AEG from scratch, this complete gearbox will save you loads of time and messing around!

12.99
  • R-HOP Kit - Great for heavy BBs
  • Includes bucking, HOP arm & nub
  • Ideal for AEG DMR builds

If you're building a DMR or accurised AEG, the Delta Armory BERSERKER R-Hop Bucking Bundle for AEG is what you need to achieve maximum range. This set includes an enhanced HOP-up arm, HOP-up bucking and OMEGA-style nub manufactured for Delta by upgrade legends Psionic Upgrades. The included HOP-up arm is designed for M4/AR-15 AEG rotary HOP-up units, specifically the Delta Armory/Specna Arms/Evolution/Lancer Tactical type but the bucking and nub are compatible with other Airsoft AEGs of all different shapes and sizes. 

The inner patch of the BERSERKER bucking is shaped to fill the HOP-up window on your barrel, just like home-brewed R-HOP setups of old. The advantage of using a BERSERKER set rather than doing all the mods yourself is its simple drop-in installation, low price compared to sourcing a separate bucking, nub and HOP-up arm and guaranteed compatibility, meaning no chance your nub doesn't work with your chosen bucking. If you use heavy BBs and need a range increase, this set will do exactly that!

15.49
  • 6.02mm Precision barrel
  • Stainless steel construction
  • AEG Barrel cut - Fits most Airsoft AEGs

If you want to improve your AEGs accuracy, range and consistency, a barrel upgrade is a great start! The Specna Arms 6.02mm Steel Tightbore Inner Barrel promises to be an improvement even over stock 6.03mm brass tightbore barrels and its stainless steel construction makes it far more rigid and less prone to bends than other brass and aluminium barrels.

This barrel is cut for standard Airsoft AEGs and should fit most of them, though we suggest referring to the product description of your gun to find out what length you need. The standard AEG barrel cuts mean you can use this precision barrel with standard AEG HOP-up buckings, HOP-up nubs and HOP-up units, meaning all your existing parts should fit and plenty of opportunities to pair this barrel with other accuracy upgrades. If accuracy is a priority for you this upgraded barrel is a must!

10.99
  • Flat diamond contact patch
  • Designed for accuracy & range
  • Compatible with most Airsoft AEGs

If you're looking for all-round improvements in your HOP-up performance, the Maple Leaf Macaron HOP-up Bucking is calling your name! Designed to fit Airsoft AEGs and enhance both accuracy and range, the Macaron boasts a flat diamond-shaped patch for greater contact area with your BBs, giving a "Flat HOP" style effect when paired with an OMEGA or OHM HOP-up nub.

When compared to the Monster HOP-up bucking, the Macaron's contact patch is slightly less prominent, designed to provide a balance between range and grouping size as opposed to the Monster's focus on pure range. Compatibility-wise, the Macaron should fit most Airsoft AEGs though some level of expertise is required for fitting and tuning. If you want tighter groups and more range, the Maple Leaf Macaron HOP-up Bucking for AEG will do the trick!

10.99
  • Flat diamond contact patch
  • Designed for accuracy & range
  • Compatible with most Airsoft AEGs

If you're looking for all-round improvements in your HOP-up performance, the Maple Leaf Macaron HOP-up Bucking is calling your name! Designed to fit Airsoft AEGs and enhance both accuracy and range, the Macaron boasts a flat diamond-shaped patch for greater contact area with your BBs, giving a "Flat HOP" style effect when paired with an OMEGA or OHM HOP-up nub.

When compared to the Monster HOP-up bucking, the Macaron's contact patch is slightly less prominent, designed to provide a balance between range and grouping size as opposed to the Monster's focus on pure range. Compatibility-wise, the Macaron should fit most Airsoft AEGs though some level of expertise is required for fitting and tuning. If you want tighter groups and more range, the Maple Leaf Macaron HOP-up Bucking for AEG will do the trick!

10.99
  • Flat diamond contact patch
  • Designed for accuracy & range
  • Compatible with most Airsoft AEGs

If you're looking for all-round improvements in your HOP-up performance, the Maple Leaf Macaron HOP-up Bucking is calling your name! Designed to fit Airsoft AEGs and enhance both accuracy and range, the Macaron boasts a flat diamond-shaped patch for greater contact area with your BBs, giving a "Flat HOP" style effect when paired with an OMEGA or OHM HOP-up nub.

When compared to the Monster HOP-up bucking, the Macaron's contact patch is slightly less prominent, designed to provide a balance between range and grouping size as opposed to the Monster's focus on pure range. Compatibility-wise, the Macaron should fit most Airsoft AEGs though some level of expertise is required for fitting and tuning. If you want tighter groups and more range, the Maple Leaf Macaron HOP-up Bucking for AEG will do the trick!

52.99
  • Rotary HOP-Up Adjuster
  • CNC Aluminium Construction
  • Includes flat & conventional HOP arms

If you're building your M4/AR-15 AEG to focus on range, accuracy and efficiency, the RetroArms CNC Rotary HOP-Up Chamber Gen.2 for M4/AR-15 AEG belongs in your build. This set is a full replacement rotary type HOP-Up unit for version 2 gearbox-equipped Airsoft M4/AR-15 platform AEGs and includes all of the parts you'll need to replace your stock HOP-up unit. The set also includes the choice of two HOP-up arms, one designed for flat HOP setups and one for conventional.

As with all internal upgrade parts, we only recommend this HOP-up unit for the technically proficient as it requires full assembly and does not include a HOP-up rubber or HOP-up nub. That said, the RetroArms CNC Rotary HOP-Up Chamber Gen.2 for M4/AR-15 AEG is widely regarded as one of the best options out there for the pros, and when set up properly, it has the potential to outrange anything else on site!

11.99
  • Lifts up to 0.48g BBs
  • Set Includes: HOP-up rubber & flat nub
  • Fits most Airsoft AEGs - Ideal for DMRs

If you need more range and accuracy from your Airsoft AEG, the 4UANTUM Friction Pro High-Performance AEG HOP-up Bucking belongs inside! This cutting-edge HOP-up upgrade set includes an HOP-up rubber/bucking with a uniquely shaped contact patch and an OMEGA-style flat nub, ready to be installed into any AEG-type HOP-up unit.

The Friction Pro bucking was developed over 2 years of rigorous testing and, since its launch, has taken the Airsoft world by storm. We've been extremely impressed by the performance of this bucking during testing, offering exceptional range and a remarkably tight grouping, a combination other buckings often compromise on.

With the ability to lift up to 0.48g BBs in its stride with 60-meter accuracy when set up correctly, the Friction Pro High-Performance AEG HOP-up Bucking from 4UANTUM is ideal for any long-range AEG setup but is especially potent in a DMR build!

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.