Airsoft Cylinder Group & Compression Parts

If you are looking for a replacement piston on the cheap with no performance compromises, CYMA to the rescue! The CYMA Steel Tooth Piston Set w/Piston Head includes the piston itself, a piston head and a piston head O-ring. The piston has a full 15-tooth rack of steel teeth, improving strength while keeping overall weight manageable, making it great for high performance builds. The set is designed for version 2 and version 3 gearboxes and will be provided in a random colour; either blue or green.

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 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.

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.

Upgrade your M4/M16 AEG. with an FPS Softair Tune Up Kit and increase its reliability and performance. The high-quality O-Rings ensure that it eliminates air leak and gives you perfect air seal for maximum efficiency and power. Constructed from Ergal (Aluminium 7075), the cylinder has a high strength and is resistant to fatigue with increased durability. The cylinder head is made for use with version 2 gearboxes, compatible with Tokyo Marui derived designs, with barrel lengths of 251 to 300mm.

This tune-up kit includes:

• Cylinder (CLTC)
• Cylinder Head (TC02E)
• Air Nozzle with O-Ring for M4/M16 (SPM4E)
• Double O-Ring Ball Bearing AEG Piston Head Advanced Type (TPAVN)

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 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.

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 your CYMA CM.098 or CM.057 needs a revamp, the CYMA Stainless Steel Cylinder for CM.057 SVD & CM.098 SR-25 AEGs should be of use. This stainless steel cylinder is ribbed to promote heat dissipation and polished on the inside for minimal friction. 

This cylinder is a standard bore unported cylinder and is compatible with version 2 long gearboxes found in CA/A&K SR-25 AEGs and CYMA CM.098 SR-25 AEGs and also fits the Real Sword spec SVD gearbox used in the CYMA CM.057 SVD/SVU series and the Real Sword SVD Dragunov. 

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.

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 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!

Increase your electric M4/M16s power and air efficiency with an upgrade nozzle and O-ring. With its CNC Aluminium Ergal construction with smooth anodized finish, this will make a grade enhancement over your stock nozzle to 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 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!

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.

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.

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 8 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.

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.

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.

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.

Upgrade your M4/M16 AEG. with an FPS Softair Tune Up Kit and increase its reliability and performance. The high-quality O-Rings ensure that it eliminates air leak and gives you perfect air seal for maximum efficiency and power. Constructed from Ergal (Aluminium 7075), the cylinder head has high strength and is resistant to fatigue and is made for use with version 2 gearboxes, compatible with Tokyo Marui derived designs.

This tune-up kit includes:

• Cylinder Head (TC02E)
• Air Nozzle with O-Ring for M4/M16 (SPM4E)
• Double O-Ring Ball Bearing AEG Piston Head Advanced Type (TPAVN)

This product increases the performance of your AEG.

Upgrade your AEGs gearbox to improve shot consistency thanks to a better air seal. The cylinder head is constructed from CNC Ergal and is anodised with a smooth surface finish, precisely engineered so that the tolerance is not affected. Features powerful built in UREPAN bumper that absorbs the shock from the piston head.

This cylinder head is suitable for version 2 gearbox variants of M4, M16, SR16, MP5, MC51, G3, M249 and LR300 and is compatible with ICS, Tokyo Marui, Classic Army, VFC and more. The hardness of the yellow rubber is 60 degrees shore, with a good balance between air seal and strength making it suitable for use in a custom DMR, as well as helping to protect the gearbox and reduce noise.

A replacement original KRYTAC part which fits version 2, 3, 6 and 7 gearboxes. This cylinder is a Type 1, meaning it has a port in the side intended to reduce the air volume for use on short barrelled platforms (<363mm inner barrel) and prevent the "suck back" phenomenon.

If you're upgrading your AK-47/74 AEG, the FPS Softair ERGAL Air Nozzle with Inner O-Ring for AK-47/74 AEG is an essential part! Made from super-strong CNC-machined ERGAL, this nozzle is about as strong as AEG nozzles get, ideal for high-performance builds intended to last.

ERGAL is the trade name for 7075 aluminium alloy, known for its exceptional strength and low weight, rivalling some steels in strength while staying light as a feather by comparison. This nozzle also features an internal O-ring designed to minimise air leaks for maximum consistency and ensure the nozzle stays perfectly aligned for reliable feeding with every shot. If you need a super strong nozzle for a high-performance AK AEG build, you won't find any better than the FPS Softair ERGAL Air Nozzle with Inner O-Ring!

If you're working on a high-speed or high FPS gearbox, the FPS Softair Carbon Fibre Reinforced Tappet Plate for V3 Gearbox is essential. This hard-wearing tappet plate is constructed from carbon fibre-reinforced polymer, making it strong and flexible in equal measure. We've had superb results installing the Version 2 equivalent of this tappet plate in Bolster Armouries builds and if you seek similar performance we would wholeheartedly recommend this plate over others.

This Carbon Fibre Tappet Plate is compatible with any version 3 Airsoft gearbox, including those found in AUG, AR36, AK & S55x AEGs. Whether you're building a DMR or a beast of a high-speed setup, the FPS Softair Carbon Fibre Reinforced Tappet Plate for V3 Gearbox is the ideal upgrade to keep it feeding!

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.

Upgrade your AEG with an FPS Softair Stainless Steel Cylinder and increase its reliability and performance. The cylinder is constructed from high-strength steel 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 251 to 330mm.

If you're looking for an upgraded nozzle for your CZ Scorpion EVO, Maxx Model has what you need! The CNC Aluminium Air Seal Nozzle for ASG CZ Scorpion EVO 3A1 is finished in metallic red and made from CNC-machined aluminium, ensuring it is perfectly in spec and strong enough for upgraded setups. This nozzle measures 18.5mm in overall length, making it a perfect fit in the ASG CZ Scorpion EVO 3A1 AEG!