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From £599.99
  • CNC T6 Aluminium upper & polymer lower
  • MechLabs XX-MOD Engine & ROTO HOP-up
  • Pre-built mechanical HPA rifle - Semi/full auto

If your sights are set on an HPA pre-build, the Helden Airsoft HR556 10" S-HPA Assault Rifle is a fantastic option! A pure mechanical HPA rifle with uniquely styled externals, the HR556 doesn't require a battery and is capable of both semi-auto and full-auto fire, with an adjustable rate of fire via the innovative XX-MOD engine and its "Air Bender" system.

On the outside, the HR556 is a cutting-edge design with all the features expected of a modern platform, including an M-LOK handguard, monolithic 20mm Picatinny railed receiver and a 1913 stock interface. This means customisation options are practically limitless, from mission essentials like lasers, flashlights and optics to alternative stocks, foregrips and more.

The internals of this beast are a perfect pairing of the XX-MOD Mechanical engine and the ROTO Bucking-less HOP-up unit, innovative, high-performance parts designed to connect flawlessly, resulting in high efficiency and maximum reliability. If you're moving over to HPA seeking a user-friendly pre-build with top-notch external quality, the Helden Airsoft HR556 10" S-HPA Assault Rifle is one to watch!

£99.99
  • High-density polymer build
  • Takes standard M4 AEG mags
  • For VORSK VMP-1 GBB SMG series
This adapter is not covered for leaks under your usual 12-month warranty.

If you're looking to get more out of your VORSK VMP-1, the Airtac HPA Adapter for VMP-1; M4 AEG Magazines is an excellent upgrade. Designed to replace your standard magazine, this pre-assembled adapter allows you to run widely available M4 AEG magazines alongside an HPA air system, giving you increased capacity and more consistent performance. To get started, you'll also need a US-spec HPA airline, regulator, air bottle and bottle regulator.

Switching to HPA offers several performance benefits over standard gas magazines. By eliminating the cooldown effect associated with rapid firing, the adapter provides more consistent FPS, improved shot-to-shot consistency and greater accuracy during sustained bursts. Using M4 AEG magazines also significantly increases your ammunition capacity, reducing the need for frequent reloads during skirmishes.

The adapter is supplied ready to install and is designed as a straightforward drop-in upgrade. Depending on the brand of M4 AEG magazine you're using, minor tuning may be required to achieve optimal feeding performance. Fortunately, all necessary tuning components are included, with detailed setup guidance available from Airtac.

If you want to improve the consistency, capacity and performance of your VMP-1, the Airtac HPA Adapter for VMP-1; M4 AEG Magazines is a superb upgrade that lets you spend more time shooting and less time reloading.

£159.99
  • High-density polymer build
  • For TM Saiga 12K & Saiga 12 SBS Shotguns
  • Feeds from M4 / AR-15 AEG Magazines
This adapter is not covered for leaks under your usual 12-month warranty.

If you're after more capacity and better rapid-fire performance from your TM Saiga-12, the Airtac High Volume HPA Adapter for Saiga 12 GBB; M4 AEG Magazines is the key. Designed for Tokyo Marui's Saiga 12K and Saiga 12 SBS, this adapter is designed for US-spec HPA setup and feeds from standard M4/AR-15 AEG mid-cap magazines, working best with PTS EPM 1-RX mags.

HPA eliminates FPS fluctuation due to the "cooldown" effect, resulting in improved shot-to-shot consistency and improved accuracy down range, especially under rapid fire. It also enhances cold-weather performance, meaning you can still run your Saiga-12 in winter, when green gas really starts to struggle.

Whether you're having a hard time with the Saiga's challenging reload or you want more capacity to switch your GBB shotgun to "easy mode", the Airtac High Volume HPA Adapter for Saiga 12 GBB; M4 AEG Magazines will do the trick!

£74.99
  • High-density polymer build
  • For Hi-Capa & SSP5 GBB Pistols
  • Feeds from M4 / AR-15 AEG Magazines
This adapter is not covered for leaks under your usual 12-month warranty.

If you're building out your Hi-Capa or SSP5 for speedsoft or HPA, the Airtac HPA Adapter for Hi-Capa GBB; M4 AEG Magazines is the icing on the cake! Made from high-density polymer, this Hi-Capa HPA adapter is designed for US-spec HPA setup and feeds from standard M4/AR-15 AEG mid-cap magazines, working best with PTS EPM 1-RX mags.

HPA eliminates FPS fluctuation due to the "cooldown" effect, resulting in improved shot-to-shot consistency and improved accuracy down range, especially under rapid fire. It also enhances cold-weather performance, meaning you can still run your Hi-Capa to its full potential in winter, when the cold temperatures hold standard green-gas-in-mag pistols back.

While the HPA performance benefits are clear, this adapter also lets you boost mag capacity, meaning less reloading and a built which can compete with full-sized rifles on the field. If you want to run your Hi-Capa as a primary, for speedsoft or otherwise, the Airtac HPA Adapter for Hi-Capa GBB; M4 AEG Magazines is essential!

£99.99
  • CNC Aluminium build
  • No bucking required
  • Best used with MechLabs HPA Engines

If you're working on an ultra-premium HPA build, the Mechlabs ROTO Pro CNC Bucking-Less HOP-up Chamber for HPA is an essential part! An innovative bucking-less design made entirely from CNC-machined aluminium, the ROTO Pro uses a precision micro-injected nub built into the HOP-up arm, eliminating the HOP-up bucking from the equation entirely.

This means no more replacing HOP-up buckings once they wear out, less hassle with installation and a far stronger, more precise HOP-up effect, especially when used with high-energy setups running heavy BBs. The rear collar of the unit is adjustable, allowing you to tune it to your nozzle length, though it requires a micro-adjustable nozzle, so it won't work with AEG builds.

The "Pro" version of the ROTO boasts a full CNC aluminium build, a more robust alternative to the ROTO Standard. The HOP-up dial is also enlarged to provide more precise dialling and more setting options, so you can tune to perfection.

Compatibility-wise, this is strictly for HPA setups and is ideally paired with a MechLabs HPA engine. Other compatible engines include PolarStar Jack, Kythera and F2, Wolverine Inferno Gen.2, Reaper and Hydra, and Gate PULSAR engines. These engines all require nozzle tuning either via the engine's adjustment or by adding shims for perfect feeding and air seal.

Using a MechLabs X-MOD, XX-MOD or NEXXUS engine with the ROTO allows you to take advantage of the ZERO Cap system, which means you can thread the HOP-up chamber into the front of the HPA engine to prevent alignment issues and maximise efficiency.

£394.99
  • CNC 6 Series Aluminium
  • Fully mechanical - No battery required
  • For V2 Gearbox M4/AR-15 AEGs

If you're planning on upping your game with an HPA build, the MechLabs XX-MOD Mechanical HPA Engine for M4/AR-15 AEGs is a great choice. Precision-machined from Series 6 aluminium, the XX-MOD is a drop-in installation in any M4/AR-15 AEG, adapting to various receiver types using its innovative 3-axis XYZ alignment system.

Being a purely mechanical engine, the XX-MOD doesn't require a battery, giving you one less thing to remember when packing for a game. This also makes the XX-MOD waterproof, and while we don't recommend doing an "over-the-beach" test with it, it can handle wet weather in its stride. Despite its mechanical operation, the XX-MOD still provides both semi-automatic and fully automatic fire modes thanks to its internal "auto block" and optimised burst management.

The most advanced mechanical HPA engine on the market today, the XX-MOD is ideally paired with a MechLabs ROTO HOP-up unit and is pre-fitted with a US Foster connector, aka a "quick fitting" for an HPA line, regulator and bottle setup. If you're moving over to the world of HPA, you'll be well-equipped with the MechLabs XX-MOD Mechanical HPA Engine for M4/AR-15 AEGs!

£394.99
  • CNC 6 Series Aluminium
  • Fully mechanical - No battery required
  • For V2 Gearbox M4/AR-15 AEGs

If you're planning on upping your game with an HPA build, the MechLabs XX-MOD Mechanical HPA Engine for M4/AR-15 AEGs is a great choice. Precision-machined from Series 6 aluminium, the XX-MOD is a drop-in installation in any M4/AR-15 AEG, adapting to various receiver types using its innovative 3-axis XYZ alignment system.

Being a purely mechanical engine, the XX-MOD doesn't require a battery, giving you one less thing to remember when packing for a game. This also makes the XX-MOD waterproof, and while we don't recommend doing an "over-the-beach" test with it, it can handle wet weather in its stride. Despite its mechanical operation, the XX-MOD still provides both semi-automatic and fully automatic fire modes thanks to its internal "auto block" and optimised burst management.

The most advanced mechanical HPA engine on the market today, the XX-MOD is ideally paired with a MechLabs ROTO HOP-up unit and is pre-fitted with a US Foster connector, aka a "quick fitting" for an HPA line, regulator and bottle setup. If you're moving over to the world of HPA, you'll be well-equipped with the MechLabs XX-MOD Mechanical HPA Engine for M4/AR-15 AEGs!

£394.99
  • CNC 6 Series Aluminium
  • Fully mechanical - No battery required
  • For V2 Gearbox M4/AR-15 AEGs

If you're planning on upping your game with an HPA build, the MechLabs XX-MOD Mechanical HPA Engine for M4/AR-15 AEGs is a great choice. Precision-machined from Series 6 aluminium, the XX-MOD is a drop-in installation in any M4/AR-15 AEG, adapting to various receiver types using its innovative 3-axis XYZ alignment system.

Being a purely mechanical engine, the XX-MOD doesn't require a battery, giving you one less thing to remember when packing for a game. This also makes the XX-MOD waterproof, and while we don't recommend doing an "over-the-beach" test with it, it can handle wet weather in its stride. Despite its mechanical operation, the XX-MOD still provides both semi-automatic and fully automatic fire modes thanks to its internal "auto block" and optimised burst management.

The most advanced mechanical HPA engine on the market today, the XX-MOD is ideally paired with a MechLabs ROTO HOP-up unit and is pre-fitted with a US Foster connector, aka a "quick fitting" for an HPA line, regulator and bottle setup. If you're moving over to the world of HPA, you'll be well-equipped with the MechLabs XX-MOD Mechanical HPA Engine for M4/AR-15 AEGs!

£394.99
  • CNC 6 Series Aluminium
  • Fully mechanical - No battery required
  • For V2 Gearbox M4/AR-15 AEGs

If you're planning on upping your game with an HPA build, the MechLabs XX-MOD Mechanical HPA Engine for M4/AR-15 AEGs is a great choice. Precision-machined from Series 6 aluminium, the XX-MOD is a drop-in installation in any M4/AR-15 AEG, adapting to various receiver types using its innovative 3-axis XYZ alignment system.

Being a purely mechanical engine, the XX-MOD doesn't require a battery, giving you one less thing to remember when packing for a game. This also makes the XX-MOD waterproof, and while we don't recommend doing an "over-the-beach" test with it, it can handle wet weather in its stride. Despite its mechanical operation, the XX-MOD still provides both semi-automatic and fully automatic fire modes thanks to its internal "auto block" and optimised burst management.

The most advanced mechanical HPA engine on the market today, the XX-MOD is ideally paired with a MechLabs ROTO HOP-up unit and is pre-fitted with a US Foster connector, aka a "quick fitting" for an HPA line, regulator and bottle setup. If you're moving over to the world of HPA, you'll be well-equipped with the MechLabs XX-MOD Mechanical HPA Engine for M4/AR-15 AEGs!

£394.99
  • CNC 6 Series Aluminium
  • Fully mechanical - No battery required
  • For V2 Gearbox M4/AR-15 AEGs

If you're planning on upping your game with an HPA build, the MechLabs XX-MOD Mechanical HPA Engine for M4/AR-15 AEGs is a great choice. Precision-machined from Series 6 aluminium, the XX-MOD is a drop-in installation in any M4/AR-15 AEG, adapting to various receiver types using its innovative 3-axis XYZ alignment system.

Being a purely mechanical engine, the XX-MOD doesn't require a battery, giving you one less thing to remember when packing for a game. This also makes the XX-MOD waterproof, and while we don't recommend doing an "over-the-beach" test with it, it can handle wet weather in its stride. Despite its mechanical operation, the XX-MOD still provides both semi-automatic and fully automatic fire modes thanks to its internal "auto block" and optimised burst management.

The most advanced mechanical HPA engine on the market today, the XX-MOD is ideally paired with a MechLabs ROTO HOP-up unit and is pre-fitted with a US Foster connector, aka a "quick fitting" for an HPA line, regulator and bottle setup. If you're moving over to the world of HPA, you'll be well-equipped with the MechLabs XX-MOD Mechanical HPA Engine for M4/AR-15 AEGs!

£394.99
  • CNC 6 Series Aluminium
  • Fully mechanical - No battery required
  • For V2 Gearbox M4/AR-15 AEGs

If you're planning on upping your game with an HPA build, the MechLabs XX-MOD Mechanical HPA Engine for M4/AR-15 AEGs is a great choice. Precision-machined from Series 6 aluminium, the XX-MOD is a drop-in installation in any M4/AR-15 AEG, adapting to various receiver types using its innovative 3-axis XYZ alignment system.

Being a purely mechanical engine, the XX-MOD doesn't require a battery, giving you one less thing to remember when packing for a game. This also makes the XX-MOD waterproof, and while we don't recommend doing an "over-the-beach" test with it, it can handle wet weather in its stride. Despite its mechanical operation, the XX-MOD still provides both semi-automatic and fully automatic fire modes thanks to its internal "auto block" and optimised burst management.

The most advanced mechanical HPA engine on the market today, the XX-MOD is ideally paired with a MechLabs ROTO HOP-up unit and is pre-fitted with a US Foster connector, aka a "quick fitting" for an HPA line, regulator and bottle setup. If you're moving over to the world of HPA, you'll be well-equipped with the MechLabs XX-MOD Mechanical HPA Engine for M4/AR-15 AEGs!

£394.99
  • CNC 6 Series Aluminium
  • Fully mechanical - No battery required
  • For V2 Gearbox M4/AR-15 AEGs

If you're planning on upping your game with an HPA build, the MechLabs XX-MOD Mechanical HPA Engine for M4/AR-15 AEGs is a great choice. Precision-machined from Series 6 aluminium, the XX-MOD is a drop-in installation in any M4/AR-15 AEG, adapting to various receiver types using its innovative 3-axis XYZ alignment system.

Being a purely mechanical engine, the XX-MOD doesn't require a battery, giving you one less thing to remember when packing for a game. This also makes the XX-MOD waterproof, and while we don't recommend doing an "over-the-beach" test with it, it can handle wet weather in its stride. Despite its mechanical operation, the XX-MOD still provides both semi-automatic and fully automatic fire modes thanks to its internal "auto block" and optimised burst management.

The most advanced mechanical HPA engine on the market today, the XX-MOD is ideally paired with a MechLabs ROTO HOP-up unit and is pre-fitted with a US Foster connector, aka a "quick fitting" for an HPA line, regulator and bottle setup. If you're moving over to the world of HPA, you'll be well-equipped with the MechLabs XX-MOD Mechanical HPA Engine for M4/AR-15 AEGs!

£394.99
  • CNC 6 Series Aluminium
  • Fully mechanical - No battery required
  • For V2 Gearbox M4/AR-15 AEGs

If you're planning on upping your game with an HPA build, the MechLabs XX-MOD Mechanical HPA Engine for M4/AR-15 AEGs is a great choice. Precision-machined from Series 6 aluminium, the XX-MOD is a drop-in installation in any M4/AR-15 AEG, adapting to various receiver types using its innovative 3-axis XYZ alignment system.

Being a purely mechanical engine, the XX-MOD doesn't require a battery, giving you one less thing to remember when packing for a game. This also makes the XX-MOD waterproof, and while we don't recommend doing an "over-the-beach" test with it, it can handle wet weather in its stride. Despite its mechanical operation, the XX-MOD still provides both semi-automatic and fully automatic fire modes thanks to its internal "auto block" and optimised burst management.

The most advanced mechanical HPA engine on the market today, the XX-MOD is ideally paired with a MechLabs ROTO HOP-up unit and is pre-fitted with a US Foster connector, aka a "quick fitting" for an HPA line, regulator and bottle setup. If you're moving over to the world of HPA, you'll be well-equipped with the MechLabs XX-MOD Mechanical HPA Engine for M4/AR-15 AEGs!

£49.99
  • CNC Aluminium & Polymer
  • No bucking required
  • Best used with MechLabs HPA Engines

If you're after a potent, innovative HOP-up system to top off your HPA build, the MechLabs ROTO Standard Bucking-Less HOP-up Chamber for HPA is a fantastic choice. An innovative new take on the HOP-up system, the ROTO uses a precision micro-injected nub built into the HOP-up arm, but eliminates the HOP-up bucking from the equation entirely.

This means no more replacing HOP-up buckings once they wear out, less hassle with installation and a far stronger, more precise HOP-up effect, especially when used with high-energy setups running heavy BBs. The rear collar of the unit is adjustable, allowing you to tune it to suit your nozzle length, though it does require a micro-adjustable nozzle, meaning it won't work with AEG builds.

Compatibility-wise, this is strictly for HPA setups and is ideally paired with a MechLabs HPA engine. Other compatible engines include PolarStar Jack, Kythera and F2, Wolverine Inferno Gen.2, Reaper and Hydra, and Gate PULSAR engines. These engines all require nozzle tuning either via the engine's adjustment or by adding shims for perfect feeding and air seal.

Using a MechLabs X-MOD, XX-MOD or NEXXUS engine with the ROTO allows you to take advantage of the ZERO Cap system, which means you can thread the HOP-up chamber into the front of the HPA engine to prevent alignment issues and maximise efficiency.

£69.99
  • High-density polymer build
  • For Gate PTX HPA Pistol
  • Adapts to feed from M4 / AR-15 AEG mags

If you need more capacity to make the most of your Gate PTX, the Angled M4 AEG Mag Adapter for Gate PTX HPA Pistol from Airtac is the key. Designed to allow the PTX HPA pistol to feed from standard M4/AR-15 AEG magazines, this adapter is set at a swept-back angle to improve ergonomics, enhance aesthetics and allow you to get lower in the prone position.

Airtac recommends PTS EPM1, NUPROL, ICS or KRYTAC magazines for optimal feeding, but other magazines advertised as "Fast Feed" should also work well (EPM Gen.2, etc).

£139.99
  • High-density polymer build
  • For Tokyo Marui / Double Eagle ZET System M4 GBBRs
  • Feeds from M4 / AR-15 AEG Magazines
This adapter is not covered for leaks under your usual 12-month warranty.

If you want more on-board firepower for your TM or Double Eagle ZET system GBBR, the Airtac HPA Adapter for MWS ZET System GBBRs; M4 AEG Magazines is a fine option. Designed for TM/DE MWS ZET System GBBRs, this adapter is designed for US-spec HPA setup and feeds from standard M4/AR-15 AEG mid-cap magazines, working best with PTS EPM 1-RX mags.

HPA eliminates FPS fluctuation due to the "cooldown" effect, resulting in improved shot-to-shot consistency and improved accuracy down range, especially under rapid fire. It also enhances cold-weather performance, meaning you can still run your GBBR in winter, when GBBRs that run on green gas really start to struggle.

The biggest benefit of this adapter is a massive capacity increase compared green gas GBBR mags, meaning less reloading and more shooting for those who prioritise in-game effectiveness over realism. If you're fed up with hitting the safe zone to reload your magazines several times a day, this adapter will save you the hassle!

£149.99
  • High-density polymer build
  • For TM / DE / CYMA CGS ZET System M4 GBBRs
  • Feeds from M4 / AR-15 AEG Magazines
This adapter is not covered for leaks under your usual 12-month warranty.

If you love the recoil of GBBRs but don't like all the reloading, the Airtac HPA Adapter for MWS ZET System GBBRs; M4 AEG Magazines is ideal. Designed for TM/DE MWS ZET System and CYMA CGS GBBRs, this adapter is designed for US-spec HPA setup and feeds from standard M4/AR-15 AEG mid-cap magazines, working best with PTS EPM 1-RX mags.

HPA eliminates FPS fluctuation due to the "cooldown" effect, resulting in improved shot-to-shot consistency and improved accuracy down range, especially under rapid fire. It also enhances cold-weather performance, meaning you can still run your GBBR in winter, when GBBRs that run on green gas really start to struggle.

The biggest benefit of this adapter is a massive capacity increase compared green gas GBBR mags, meaning less reloading and more shooting for those who prioritise in-game effectiveness over realism. If you're fed up with hitting the safe zone to reload your magazines several times a day, this adapter will save you the hassle!

£9.99
  • 1000D Nylon construction
  • Mounts to MOLLE webbing
  • Fits HPA bottles and 1L water bottles

If you need an affordable way to keep water on your person in the field, the 8Fields Tactical MOLLE 1L Water/HPA Bottle Carrier is ideal. This water bottle pouch is constructed from 1000D Nylon and features MOLLE webbing and velcro on the front and sides, allowing for patches and additional MOLLE pouches to be mounted where you see fit. The pouch itself mounts to MOLLE webbing, making it easy to mount wherever you need it, whether on a plate carrier, chest rig, belt or backpack. 

While it is designed for 1L water bottles, this pouch is also well-sized to fit 48ci HPA bottles (measuring 14 x 10cm approx) and is closed at the top using dual zips. You may even be able to poke your regulator and line through the zip without modification, though it may fit better with a hole carefully cut in the top. If you're in need of a more compact hydration solution or an affordable HPA bottle pouch, the MOLLE 1L Water/HPA Bottle Carrier from 8Fields Tactical is a fine choice!

£9.99
  • 1000D Nylon construction
  • Mounts to MOLLE webbing
  • Fits HPA bottles and 1L water bottles

If you need an affordable way to keep water on your person in the field, the 8Fields Tactical MOLLE 1L Water/HPA Bottle Carrier is ideal. This water bottle pouch is constructed from 1000D Nylon and features MOLLE webbing and velcro on the front and sides, allowing for patches and additional MOLLE pouches to be mounted where you see fit. The pouch itself mounts to MOLLE webbing, making it easy to mount wherever you need it, whether on a plate carrier, chest rig, belt or backpack. 

While it is designed for 1L water bottles, this pouch is also well-sized to fit 48ci HPA bottles (measuring 14 x 10cm approx) and is closed at the top using dual zips. You may even be able to poke your regulator and line through the zip without modification, though it may fit better with a hole carefully cut in the top. If you're in need of a more compact hydration solution or an affordable HPA bottle pouch, the MOLLE 1L Water/HPA Bottle Carrier from 8Fields Tactical is a fine choice!

£9.99
  • 1000D Nylon construction
  • Mounts to MOLLE webbing
  • Fits HPA bottles and 1L water bottles

If you need an affordable way to keep water on your person in the field, the 8Fields Tactical MOLLE 1L Water/HPA Bottle Carrier is ideal. This water bottle pouch is constructed from 1000D Nylon and features MOLLE webbing and velcro on the front and sides, allowing for patches and additional MOLLE pouches to be mounted where you see fit. The pouch itself mounts to MOLLE webbing, making it easy to mount wherever you need it, whether on a plate carrier, chest rig, belt or backpack. 

While it is designed for 1L water bottles, this pouch is also well-sized to fit 48ci HPA bottles (measuring 14 x 10cm approx) and is closed at the top using dual zips. You may even be able to poke your regulator and line through the zip without modification, though it may fit better with a hole carefully cut in the top. If you're in need of a more compact hydration solution or an affordable HPA bottle pouch, the MOLLE 1L Water/HPA Bottle Carrier from 8Fields Tactical is a fine choice!

£9.99
  • 1000D Nylon construction
  • Mounts to MOLLE webbing
  • Fits HPA bottles and 1L water bottles

If you need an affordable way to keep water on your person in the field, the 8Fields Tactical MOLLE 1L Water/HPA Bottle Carrier is ideal. This water bottle pouch is constructed from 1000D Nylon and features MOLLE webbing and velcro on the front and sides, allowing for patches and additional MOLLE pouches to be mounted where you see fit. The pouch itself mounts to MOLLE webbing, making it easy to mount wherever you need it, whether on a plate carrier, chest rig, belt or backpack. 

While it is designed for 1L water bottles, this pouch is also well-sized to fit 48ci HPA bottles (measuring 14 x 10cm approx) and is closed at the top using dual zips. You may even be able to poke your regulator and line through the zip without modification, though it may fit better with a hole carefully cut in the top. If you're in need of a more compact hydration solution or an affordable HPA bottle pouch, the MOLLE 1L Water/HPA Bottle Carrier from 8Fields Tactical is a fine choice!

£85.99
  • Bluetooth connectivity built in
  • Expert firmware preinstalled
  • Fits V2 GB AEGs & single-solenoid HPA engines

If you're searching for an advanced MOSFET for your version 2 gearbox-equipped AEG, the GATE ASTER II Bluetooth® EXPERT & Quantum 2 Trigger for AEG & HPA V2 Gearbox is ideal. A cutting-edge advancement over the original Gate ASTER MOSFET, the ASTER II boasts several quality-of-life improvements, more customisation options than ever before and Bluetooth 5.2 connectivity built in, allowing you to change settings wirelessly on your smartphone or mobile device.

The ASTER II electronic trigger unit replaces your conventional trigger contacts with optical sensors, allowing for 250 different trigger sensitivity settings, burst and binary fire modes, and a plethora of other functions to be programmed in using either the trigger and fire selector or the Gate Control Station App. Other programmable options include adjustable pre-cocking and adjustable active braking; perfect for the techy types to set their primary up to suit practically any build objective.

This set also includes the Gate QUANTUM 2 CNC trigger, which is compatible with M4/AR-15 AEGs but unfortunately won't work with SMG-5 or G3 platforms. When installed, the Quantum 2 trigger offers 250 trigger sensitivity options via the ASTER II's optical sensors and also includes a grub screw to provide over-travel adjustment. Constructed from CNC-machined aluminium, the Quantum 2 looks great and allows the ASTER™ to take full advantage of its optical trigger sensors and tune the trigger feel to suit your exact requirements.

The ASTER II is compatible with any version 2 gearbox-equipped AEG and can also be used with the Gate PULSAR Single-Solenoid HPA Engine if you add the ASTER II-specific HPA cable. If you're ready to turn your Airsoft gun into a Space Gun, the GATE ASTER II Bluetooth® EXPERT & Quantum 2 Trigger for AEG & HPA V2 Gearbox is calling your name!

£85.99
  • Bluetooth connectivity built in
  • Expert firmware preinstalled
  • Fits V2 GB AEGs & single-solenoid HPA engines

If you're searching for an advanced MOSFET for your version 2 gearbox-equipped AEG, the GATE ASTER II Bluetooth® EXPERT & Quantum 2 Trigger for AEG & HPA V2 Gearbox is ideal. A cutting-edge advancement over the original Gate ASTER MOSFET, the ASTER II boasts several quality-of-life improvements, more customisation options than ever before and Bluetooth 5.2 connectivity built in, allowing you to change settings wirelessly on your smartphone or mobile device.

The ASTER II electronic trigger unit replaces your conventional trigger contacts with optical sensors, allowing for 250 different trigger sensitivity settings, burst and binary fire modes, and a plethora of other functions to be programmed in using either the trigger and fire selector or the Gate Control Station App. Other programmable options include adjustable pre-cocking and adjustable active braking; perfect for the techy types to set their primary up to suit practically any build objective.

This set also includes the Gate QUANTUM 2 CNC trigger, which is compatible with M4/AR-15 AEGs but unfortunately won't work with SMG-5 or G3 platforms. When installed, the Quantum 2 trigger offers 250 trigger sensitivity options via the ASTER II's optical sensors and also includes a grub screw to provide over-travel adjustment. Constructed from CNC-machined aluminium, the Quantum 2 looks great and allows the ASTER™ to take full advantage of its optical trigger sensors and tune the trigger feel to suit your exact requirements.

The ASTER II is compatible with any version 2 gearbox-equipped AEG and can also be used with the Gate PULSAR Single-Solenoid HPA Engine if you add the ASTER II-specific HPA cable. If you're ready to turn your Airsoft gun into a Space Gun, the GATE ASTER II Bluetooth® EXPERT & Quantum 2 Trigger for AEG & HPA V2 Gearbox is calling your name!

£42.99
  • Aluminium construction
  • 48 Cubic Inch / 0.8L capacity
  • Bottle reg included - Requires line & line reg

If you're kitting yourself out for HPA on a tight budget, the NUPROL Aluminium 48ci 3000PSI HPA Tank is a fine choice! Boasting a 48ci/ 0.8L capacity and capable of being pressurised to up to 3000PSI, this set includes an integral bottle regulator, but you will also need an airline and line regulator to complete the setup.

These tanks are marked with a manufacture date of 2026/0, UK Rho marks, and EU PI 0035 certification, making them compliant with both UK and European regulations. If you're ready for HPA, this NUPROL Aluminium 48ci 3000PSI HPA Tank is a fantastic entry point!

About Our HPA Airsoft Gas

For advanced players really looking to cook with gas, shop our full range of HPA airsoft bottles. We stock only the highest quality manufacturers on the market, so you know you’re getting the best HPA with Patrol Base UK. 

Since airsoft HPA bottles can be pretty big, we’ve made sure what we stock is as lightweight as possible to save you carrying any additional weight around with you on the field. This helps keep you nimble and quick in those high-pressure skirmish conditions. 

Much like CO2 gas, airsoft HPA isn’t particularly affected by the cold, which makes it ideal if you’re looking for something to use in all weather conditions. Our HPA is also compatible with a range of gas-powered weapons like airsoft assault rifles, gas submachine guns and more.