Airsoft Cylinder Group & Compression Parts

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.

Take your AEG to the next level with a revolutionary Piston. It has been redesigned to ensure a premium performance. The Nightstalker piston has eradicated all the common weaknesses of an AEG piston to create an almost flawless design. Firstly, it has been constructed from a reinforced polymer, one that can pull stronger springs without causing damage to itself. It also has a drop-in angle of engagement (AOE) which helps distribute the force evenly on the teeth of the piston rack, reducing the risk of premature wear or breakage.

The stress points of the piston have been revised to spread the wear between 3 contact points and drastically reduce the load on each tooth. Another upgrade is that the piston rails have been revised to reduce friction, this removes the wobbling of the piston against the gearbox and keeps it completely straight. All these revisions and enhancements make for a consistent improvement in FPS and performance. Make your AEG premium, for real.

If you're working on a beastly high-speed build, but it won't feed as fast as it cycles, the Bolster Armouries Premium 200% AEG Tappet Spring will solve that! Made in England from high-quality spring steel, this tappet plate spring is twice as strong as the standard, meaning it's capable of feeding at almost twice the speed, provided you're using magazines capable of high-speed feeding (PTS EPM1-RX, etc).

If you're working on a DSG or any build with a rate of fire of over 25 rounds per second, the Bolster Armouries Premium 200% AEG Tappet Spring is the key to reliable feeding!

Increase your electric M4/M16s power and air efficiency with an upgraded nozzle and O-ring. With its robust CNC Delrin construction, this will make a great enhancement over your stock nozzle and is to be used with version 2 gearboxes.

Make sure to use pure silicone oil to lubricate your cylinder head's nozzle stem before installing this nozzle.

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.

If you're looking for a strong and lightweight nozzle for your Airsoft AEG, this is worth a look! The FGATE CNC POM Sealed Nozzle with O-Ring for Airsoft AEGS is made from CNC POM polymer, a massive upgrade from the factory polymer nozzles present in most Airsoft platforms. The nozzle also includes an internal O-ring to maximise air seal, and its ultra-strong POM construction is ideal for high rates of fire or high FPS setups.

You can get a nozzle that is perfectly sized for the majority of Airsoft AEGs, including AKs, M4/M16 and SR25 rifles. So if you want to up your platform's consistency or you're looking for a replacement part, this is a great piece to pick up!

If you're looking for a strong and lightweight nozzle for your Airsoft AEG, this is worth a look! The FGATE CNC POM Sealed Nozzle with O-Ring for Airsoft AEGS is made from CNC POM polymer, a massive upgrade from the factory polymer nozzles present in most Airsoft platforms. The nozzle also includes an internal O-ring to maximise air seal, and its ultra-strong POM construction is ideal for high rates of fire or high FPS setups.

You can get a nozzle that is perfectly sized for the majority of Airsoft AEGs, including AKs, M4/M16 and SR25 rifles. So if you want to up your platform's consistency or you're looking for a replacement part, this is a great piece to pick up!

If you're upgrading your AEG with reliability and performance in mind, the FPS Softair CNC ERGAL Double O-Ring Ball Bearing Piston Head for AEG should be an integral part! Made from precisely machined ERGAL 7075 aluminium, this double O-ring piston head promotes flawless air seal qualities, equipped with ball bearings to reduce rotational stress on both your piston and mainspring for a long lifespan of top-tier performance.

Its ported design ensures the O-rings fill up any gap between the cylinder inner walls and the piston head, sending all generated air downrange for maximum consistency and, thus, accuracy. Compatibility-wise, this piston head fits V2/V3 gearbox-equipped AEGs, along with certain other designs which take V2/V3 compression group parts. 

Upgrade your M4/M16 AEG. with an FPS Softair Stainless Steel Cylinder and increase its reliability and performance. The cylinder has a high strength and is resistant to fatigue with increased durability. The cylinder is made for use with version 2 or 3 gearboxes, compatible with Tokyo Marui derived designs, with barrel lengths of 451 to 550mm.

Whether you've got feeding issues or you're working on a custom build, the SHS Reinforced Tappet Plate for Version 2 Gearbox is the key to reliability! Designed for Version 2 gearbox-equipped AEG platforms like the M4/AR-15, AR-9, SMG-5/MP5 and G3, this is the part which cycles the air nozzle back and forth, an essential for reliable feeding.

The strong polymer construction of this tappet ensures your platform feeds reliably, even at high speed or in high FPS DMR builds. If you need an affordable tappet plate to fix or upgrade your V2 gearbox AEG, the SHS Reinforced Tappet Plate for Version 2 Gearbox is the right choice!

The Bolster Armouries AOE Correction Washer is the perfect easy upgrade for your Airsoft AEG. It fits behind the piston head and ensures your replica has the perfect angle of engagement. This is the angle at which the first tooth of the piston toothing comes into contact with the toothing of the sector gear. If the AOE is incorrectly adjusted, the piston guiding rails and the first piston tooth are subjected to increased wear.

The correct AOE adjustment significantly increases the lifetime of a piston, it can also reduce the chance of your Airsoft platform jamming, which often occurs when the angle of correction is not correct. The FPS will also be more consistent due to a smoother and more precise engagement when firing the AEG.

Treat your Airsoft AEG to the Bolster Armouries AOE Correction Washer and watch as its performance becomes more consistent and the piston survives many more skirmishes.

Upgrade your M4/M16 AEG. with an FPS Softair Stainless Steel Cylinder and increase its reliability and performance. The cylinder has a high strength and is resistant to fatigue with increased durability. The cylinder is made for use with version 2 or 3 gearboxes, compatible with Tokyo Marui derived designs, with barrel lengths of 301 to 400mm.

If you are looking for a replacement piston for your Real Sword or CM.057 variant SVD, then CYMA has come to the rescue! The CYMA SVD/SVU Piston and Head Set includes the piston itself, a piston head and a piston head O-ring. The piston has a full 18-tooth rack of steel teeth, improving strength while keeping overall weight manageable, making it great for high-performance SVD builds.

The piston is constructed from durable polymer and the piston head from CNC anodised aluminium. The piston head features vents to improve tightness and has a rubber pad to help absorb the shock from impact when the platform is fired. The piston head also has a bearing within it to improve the spring action of your SVD replica.

The set is designed exclusively for the Real Sword or Cyma variants of the SVD and is NOT compatible with other brands' SVD platforms.

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.

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.

Need a new cylinder for your Version 2 gearbox? This Specna Arms Type 2 Cylinder is a top-tier replacement from the Edge series, built for performance and reliability. Its polished inner surface reduces friction for smoother operation and better air efficiency.

As a Type 2 cylinder, it features a precision port designed to vent excess air, perfect for AEGs running inner barrels between 270mm and 430mm. Compatible with both Version 2 gearboxes, this is a solid upgrade for experienced techs who know their way around AEG internals.

An AEG cylinder head for version 2 gearboxes found in M4/AR15 AEGs and SMG-5 AEGs. This KRYTAC part features a dampening pad, intended to reduce the noise from the piston impacting the cylinder head and give you a smoother sounding gearbox. The cylinder head is constructed from high density polymer with a brass inner nozzle and a rubber dampening pad.

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.

If you are planning to upgrade your Tokyo Marui NGRS system M4, this nozzle will be an asset to your build. The FPS Softair CNC ERGAL Air Seal Nozzle For TM NGRS M4/AR-15 is a vast improvement over the stock polymer air nozzle thanks to its highly robust CNC ERGAL (7075 aluminium alloy) construction and internal O-ring which should provide better air seal and a slight raise in FPS as a result.

The nozzle also comes with a pair of O-rings and has an anodised finish, providing a super smooth friction-free coating which will see your NGRS M4 working at peak efficiency.

If you're working on a custom build, the FPS Softair Stainless Steel Cylinder; Type B; 201-250mm Inner Barrel is what you need for perfect friction-free performance! Precisely machined from high-grade stainless steel using CNC technology, this cylinder is flawlessly polished on the inside to reduce friction and features cooling grooves on the outside to reduce friction-induced heat buildup. 

This cylinder is a "Type B", designed for inner barrels between 201mm and 250mm in length. If you match your cylinder volume with your inner barrel volume, you can squeeze every last bit of accuracy out of your build, avoiding the "suck back" effect of having less air volume in the cylinder and consistency issues arising due to having too much air volume. Very few manufacturers do this properly in mass-produced AEGs, so if you have high standards and the skills to tune to perfection, we wholeheartedly recommend it!

Compatibility-wise, this should work in most Airsoft AEG gearboxes, other than those with proprietary cylinder designs. If you're working on a custom build with a high rate of fire and want flawless accuracy and minimal heat build-up, the FPS Softair Stainless Steel Cylinder; Type B; 201-250mm Inner Barrel belongs inside!

Whether you're fixing up your Specna Arms AEG or looking for affordable internal parts, the Specna Arms Aluminium Double O-ring Cylinder Head for Aether™ Gearbox is a great option. Made from CNC-machined aluminium with a double O-ring configuration, this cylinder head is far more robust than polymer equivalents, and its double O-ring setup closes the gap between the cylinder and head to maximise air efficiency.

Compatibility-wise, this should fit most Airsoft AEGs which use a V2/3-compatible cylinder head, which covers most options on the market. Whether you're experiencing low FPS or you're looking for high-performance parts on a tight budget, the Specna Arms Aluminium Double O-ring Cylinder Head for Aether™ Gearbox has you covered!

If you need a quick, cheap replacement piston head for your Assault rifle, you've come to the right place. The Specna Arms Replacement Piston Head for V2/3 Gearboxes is identical to the piston head that comes in CORE series platforms. This means that, whilst it's nothing special, it is reliable and good enough to be installed in a stock platform. It is the perfect spare part to have around for your V2 and V3 gearboxes.

If you need a new cylinder head to fix up your Dragunov, check this out! The CYMA Aluminium Cylinder Head for CYMA/Real Sword SVD/SVU is constructed from CNC machined aluminium and is fitted with two O-rings to seal any gaps between it and the cylinder for perfect efficiency and minimal air loss.

The cylinder head also has a sound dampening pad installed on the rear face which reduces gearbox noise and protects the piston head from the force of repeated impacts. A replacement original part for the CYMA CM.057 SVD/SVU series, this cylinder head is also compatible with the old Real Sword Dragunov SVD!

If you need a new nozzle for your CYMA CM.057 or Real Sword Dragonov SVD, CYMA has you covered! The Aluminium Nozzle for CYMA/Real Sword SVD/SVU is constructed from CNC machined aluminium and compatible with the CYMA CM.057 SVD/SVU AEG series and the Real Sword Dragunov SVD AEG.

This is a replacement original part specifically designed for the Real Sword pattern SVD gearbox used in the CYMA CM.057 series and is not compatible with A&K SVDs or others. If you've built a beast of a DMR with your SVD and you want to get ahead of any potential parts failures this is a great part to have in the toolbox!