All Electric Parts

If you seek more accuracy or range from your AEG, the Prometheus HOP-up Tensioner for AEGs will help you achieve it! Supplied as a pack of two tensioners, you can choose between a "Bridge" style design with a central groove designed to reduce side-to-side deviation and thus, enhance accuracy, or a "Flat" style design intended to achieve maximum range. The contact surface provided by this HOP-up nub (another word for tensioner) is far larger than the standard, resulting in a stronger backspin effect and extended range with heavy-weight BBs.

The two tensioners included in the set are of different colours; one purple and one black. The purple tensioner is made from softer rubber, designed for sub-350 FPS builds and the black one is slightly harder, ideal for 350 FPS and above, making it the perfect tensioner for an AEG DMR. Compatibility-wise, these tensioners should fit almost any Airsoft AEG HOP-up unit but as always is the case with internal upgrades, we only recommend these for experienced techs and those who know their way around AEG internals. If accuracy and range is your objective, the Prometheus Bridge HOP-up Tensioner for AEGs belongs in your build!

If you want to transform your version 2 gearbox-equipped AEG into a true "smart gun", the Gate TITAN™ MOSFET V2; Expert Firmware will do exactly that. This advanced MOSFET/ETU system replaces the copper trigger contact inside the version 2 gearbox with optical sensors, eliminating the need for a cut-off lever, extending the lifespan of your AEG and offering unprecedented trigger sensitivity, fire mode and cycle control adjustment options.

The latest version of the TITAN™ V2 includes the Expert Firmware, meaning you have immediate access to the most advanced programming functions of the TITAN™ without needing to pay more to update the firmware. With the Gate USB-Link or Blulink, you can set your pre-cocking level for a speedy trigger response, adjust your trigger sensitivity, tune active braking and adjust the rate of fire for a truly custom setup that suits your playstyle perfectly. The usual programmable MOSFET functions of other ETUs are also present, including burst mode, binary trigger, semi-auto-only, ramping semi-auto, dual-stage trigger and sniper delay.

If you have an AEG mega-build on your mind using a version 2 gearbox, add the Gate TITAN™ MOSFET V2; Expert Firmware to your parts list to take it to the next level!

If you're looking for a sturdy upgrade to your AEG, you can't get any better than something from Bolster Armouries. This O-ring is constructed from high-density rubber and provides a superior seal to increase the reliability and lifespan of your Airsoft rifle. This O-ring can improve your air seal consistency, which can result in increased accuracy. This o-ring is compatible with most AEG piston heads.

A replacement or upgrade air nozzle for AEG M4s that require a nozzle length of 21.2mm.

If you want to turn your M4, SMG-5, G3 or other V2 gearbox-equipped platform into an advanced space gun, the Double Eagle FALCON 2.0 Programmable MOSFET for V2 Gearbox should do the trick! This is the same FALCON EFCS system installed in Double Eagle's superb M90x range, including the UTR45, UTR556 and AX//15 rifles. Once installed, the FALCON offers a wide range of programmable fire mode options along with adjustable trigger sensitivity and the usual improvements in rate of fire and trigger response a MOSFET provides. 

Available fire modes include 1-5 round burst, binary trigger (fire on trigger pull and on release), and 3 levels of trigger sensitivity, from a super short hair trigger to a more realistic full trigger pull. The FALCON will also warn you of any electrical anomalies by vibrating your motor 3 times and cutting off power to protect itself and will also cut power if your battery is running too low, indicating with 5 motor vibrations. The only thing the FALCON doesn't do is shoot the AEG for you!

If you want to breathe new life into your AEG in the form of speed and torque, the Specna Arms BLDC Brushless Motor; Long is calling your name! The BLDC motor is the affordable option in Specna Arms' new brushless motor lineup, offering the same benefits as the top-end DARK MATTER™ motors with a more economical cast aluminium housing. This variant is the 27K option, offering 27,000 revolutions per minute, plenty for a high-speed build but also an asset to any DMR build requiring a high torque solution.

Brushless Motors boast 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. This, the "long shaft" variant is designed for M4/AR-15 derived AEGs, G3, SMG-5 and P90 AEGs and is a relatively simple install job, though you may need to reinforce other parts to cope with the impressive torque and speed delivered by the BLDC motor.

If you're upgrading your M4, G3, SMG-5 or P90 AEG and seeking more speed for a higher rate of fire or more torque for a better trigger response and the ability to pull strong DMR springs, the BLDC Brushless Motor from Specna Arms is the ideal affordable option!

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.

If you're building a gearbox from scratch or have some repairs to carry out, the KRYTAC Air Nozzle w/ O-Ring for M4/AR-15 AEG is a handy spare to have around just in case. This nozzle is the same used in the KRYTAC Trident and REC7 range, constructed from polymer with an inner O-ring to enhance air seal qualities. Compatibility-wise, this nozzle is designed for version 2 gearbox-equipped M4/AR-15 AEGs and has an overall length of 21.15mm.

If you like to keep spare parts on hand, are building a gearbox from scratch or have had a tappet plate failure, CYMA's Tappet Plate for V2 Gearbox is ideal. This tappet plate is designed for version 2 gearboxes and is constructed from polymer. As with all internal parts, we recommend doing your research before attempting to install this tappet plate or consulting a tech who can advise.

If you're working on your gearbox and looking for more efficiency, the Lonex Aluminium Piston Head for V2/V3 Gearbox is ideal for your build. This piston head is constructed from CNC aluminium and is equipped with a rubber O-ring surrounding its surface to close the gap between the piston head and cylinder, ensuring every bit of air compressed by the piston is translated into downrange effect.

This piston head is compatible with version 2 and version 3 AEG gearboxes and is a handy part to have around for the techy types. Whether you're building a custom gearbox or upgrading, the Lonex Aluminium Piston Head for V2/V3 Gearbox is an essential part!

Whether you are upgrading your SMG-5 or repairing it, the CYMA CM.041G/CM.041H Complete Gearbox E-Edition High-Speed is a great excuse to do both at the same time! This gearbox is a Version 2, designed for CYMA CM.041 series SMG-5 AEGs but should fit most SMG-5 AEGs on the market (not SMG-5K) and also includes a high-speed motor of the long shaft variety.

As the heart of the CYMA E-Edition High-Speed Platinum AEG series, this gearbox is absolutely packed with upgraded parts. Highlights of the internals include the CYMA MOSFET/ETU system, steel high-speed 13:1 ratio gears, an aluminium silent piston head and cylinder head and a quick change spring system. Being a replacement original parts set, this gearbox is the exact setup found in the superb CM.041G and CM.041H AEGs, meaning if you have ever been envious of their performance you can now make your SMG-5 shoot just as nicely!

If you have damaged your battery connector or you need spares for a build project, this set will sort you out! The NUPROL Mini-Tamiya Connectors Set includes 2 male and 1 female mini-Tamiya connectors with black external connectors.

The packaging states that the set includes 1 male and 2 female connectors but this is based on the external connector design. What is actually included is one connector for your gun(female) and 2 for the battery side(male), click here to see why we classify battery connectors this way.

A useful spare to have around for repairs and equally useful for scratch builds, the NUPROL Mini-Tamiya Connectors Set is a great set to have around just in case!

Bolster Armouries EZO Ball-Bearing Bushings are designed and manufactured by Sapparo Precision Inc. in Japan and have been chosen by the Bolster team thanks to their extremely low friction, high-quality steel construction and fantastic reputation in a wide range of industries.

Specialists in medium and miniature ball bearings, Sapporo Precision bearings have a wide range of applications; in this case, reducing friction and extending the lifespan of whichever AEG they're installed inside. These bearings allow the gears to spin freely at a tremendous rate under high stress with minimal chances of failure, all while reducing stress on the gearbox shell and gear axles.

These are the same bearings used in Bolster Armouries' ultra high-end ONYX [Violet Edition] and ONYX [Blackout] builds and have performed phenomenally, proving to be far stronger than the average ball-bearing bushings. Compatibility-wise, these EZO Bearings will fit any AEG gearbox shell with 8mm bushing holes. If you want a super slick smooth running AEG build, Bolster Armouries EZO 8mm Japanese Steel Ball Bearing Bushing Set belong inside! 

If you find your springs are wearing down faster than they should you need a replacement spring set!

This  pack comes with 6 different types of spring including:

• Switch Return Spring
• Tappet Plate Spring
• Anti-Reversal Lath Spring
• Stopper Arm Spring
• Selector Plates spring for Version II
• Trigger Return Spring

The springs are designed for use with version 2 gearboxes, for AEG rifles such as M4s, AR36s, SMG-5 and more!

If you have had a mishap with your bevel gear, this KRYTAC replacement part should sort it! The KRYTAC Bevel Gear Assembly for V2/3 AEG Gearbox is constructed from hardened steel and is compatible with any AEG which uses a V2 or V3 gearbox. The hardened steel construction makes this bevel gear perfect to pair with an upgraded motor to guarantee long-term performance.

A set of pre-made R-HOP patches designed to take the stress out of r-hopping your hop-up unit. These patches are replacements for existing hop-up rubber, and are designed to be glued into the window on the barrel rather than sliding over it. This modification is for advanced Airsoft tech, and requires existing r-hop knowledge or experience.

If you have HOP-up woes with your SMG-5 this could be what you need to fix it up! The CYMA HOP-Up Chamber with Rubber and Nub for SMG-5 AEG is a replacement original part for the CM.027 SMG-5 series but should also work in any TM based SMG-5 AEG (not NGRS variants). The set includes a complete HOP-up unit with the HOP-up arm and also includes a basic HOP-up rubber and nub, giving you everything you need to replace the entire unit in a single package.

This set is designed for the CM.027 which is a copy of the Tokyo Marui SMG-5 AEG and should also work with similar designs but is not compatible with the Classic Army SMG-5 or the later CYMA CM.041 series SMG-5 AEGs.

If you're looking to revamp your old SR25 why not take a walk on easy street and replace the whole gearbox? The CYMA CM.098 SR25 V2 Long Gearbox Set w/Motor is the exact gearbox used in their CM.098 SR25 series and should be compatible with Classic Army style SR25 AEGs which use the version 2 long gearbox (Classic Army, CYMA and A&K). This gearbox is well equipped, and includes a MOSFET/ETU prewired in, a quick change spring system, an M130 spring and also includes a high torque Neodymium magnet motor. Perfect to fix up an old big boy AR!

If you love working on gearboxes or have a version 3 custom build on the cards, the FPS Softair Complete Gearbox Spring Set for V3 Gearbox belongs in your toolbox. This set includes all of the springs needed for a version 3 gearbox build, including the tappet plate spring, ARL spring, motor height spring, cut-off lever spring, trigger return spring and switch return spring.

All of the springs in this set have been manufactured by FPS Softair to be more durable than the original springs and with more precisely calculated tension for maximum efficiency. Whether you've lost a spring, are working on a version 3 gearbox build or need spares for your technical projects, the FPS Softair Complete Gearbox Spring Set for V3 Gearbox will be useful addition to your parts bin!

If your tappet plate has broken due to some high rate of fire shenanigans, here is what you need to fix her up! The KRYTAC Tappet Plate for Version 2 Gearbox is a replacement original part, designed for the Krytac Trident AEG series but should be compatible with almost every Version 2 gearbox on the market. The set includes the tappet plate only and does not come with a nozzle or tappet plate spring.

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.

If you're working on the ultimate AK AEG build, the RetroArms Precision CNC HOP-Up Chamber for AK AEGs is an integral part! This CNC machined HOP-up unit is made from 7075 Aluminium, granting it steel-like strength and flawlessly precise machining with the weight reduction perks of aluminium.

The most unique aspect of this HOP-up unit is the inclusion of what RetroArms call the "collet nut", a threaded nut which seals the gap between the inner barrel and HOP-up chamber walls. This saves you any messing around with PTFE tape and ensures your platform's air-seal is perfect, resulting in more consistent FPS readings translating to improved accuracy downrange.

The set includes everything you'll need to complete the HOP-up unit with the exception of the bucking, nub and inner barrel but will require assembly. As such, we only recommend this HOP-up unit to those confident working on Airsoft internals. Best used with the RetroArms CNC Version 3 Gearbox but compatible with almost every TM-based AK AEG on the market, the RetroArms Precision CNC HOP-Up Chamber for AK AEGs is a fantastic upgrade option for performance-oriented AK build!

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.

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!

If you've had a cut-off lever failure or you're the techy type who keeps parts on hand just in case, the CYMA Cut Off Lever for V2 Gearbox is ideal. This is a replacement original part constructed from alloy, compatible with most version 2 gearboxes on the market.

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.

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!

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.

If you're running one of the newer G&G platforms with the G&G rotary HOP-up, check this out! The Airtech Studios TDC Conversion Set for G&G Rotary HOP-up Unit is intended to provide maximum performance from your original G&G rotary HOP-up unit. Designed specifically for the latest G&G rotary HOP-up design, this kit includes an enhanced HOP-up arm, TDC trolley, 2 x M-nubs and a centring unit.

The benefits of a TDC HOP-up unit include a stronger HOP-up effect and less chance of side-to-side shot deviation when using heavy BBs at high FPS. This part will require modification to your original outer barrel to fit, but thankfully these mods are quite easy and thoroughly explained on the Airtech Studios website. If you want your G&G Rotary-equipped AEG to reach out and touch the enemy at crazy ranges, this TDC Conversion Set is what you need!

Take your shooting to the next level with the Perun MOSFET ETU++ for G&G G2 ETU AEG, which gives you access to many advanced features such as burst fire, binary trigger, system diagnostics and many more!

The unit is designed to replace your G&G G2 ETU and provide a whole bunch of extra functions, with more options than even the original G2 boasts. Far easier to install compared with alternatives, the Perun ETU++ replaces the stock G&G G2 electronics board with no need to open the gearbox, however, the installation will still require a certain level of knowledge and experience.