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PULSAR S Single Solenoid HPA Engine set with TITAN II Bluetooth® EXPERT for V2 GB + free Extra Nozzle

PULSAR S Single Solenoid HPA Engine set with TITAN II Bluetooth® EXPERT for V2 GB + free Extra Nozzle

Regular price USD 339.00
Regular price USD 374.00 Sale price USD 339.00
Sale Sold out
Shipping calculated at checkout.

QD Fitting not included – you can find it here: QD Fitting

Color may vary slightly depending on batch

Free express shipping

Free express shipping via courier on all orders over 250 USD

Shipping & Returns

Destination Express shipping via Fedex/UPS Polish National Postal Service
 Europe 2-7 business days 1-2 weeks
Asia 2-5 business days not available
US/Canada 2-3 business days not available
Australia 3-4 business days not available


*Please note that the above delivery times may be extended due to custom duty procedure.


1. The Goods purchased in the Online Store are delivered worldwide, subject to territorial restrictions under applicable laws.
2. The Goods are delivered via specialised courier companies or Poczta Polska (the Polish national postal operator). In some cases, the Goods may be personally collected from the Seller’s registered office, and in the case of the Goods that represent digital content – they may be downloaded on an appropriate device.
3. The Goods are shipped within 1 to 3 (one to three) business days from payment booking. In some cases, the Goods can be shipped at a later date. This applies also to the Goods sold in advance (pre-sale). In such a case, the Seller shall inform the Client about a shipment date. An approximate shipment delivery date depends on a delivery method selected and a destination country, and is specified at order placement. When selecting a transfer payment option, the delivery time indicated on the Website shall be increased by time needed to credit the Client’s entire payment to the Seller’s bank account, usually 1-2 (one to two) business days. Further, in the case of countries outside the European Union, due to distance and potential customs controls the delivery time may be prolonged up to 5 weeks.
4. Detailed delivery method information is available in the Online Store in a Cart section of the given Product.
5. The Goods are shipped to an address specified in an order form or provided by phone or by e-mail. The Seller shall promptly inform the Client about the fact that an order form has been filled in incorrectly if this prevents or delays the conclusion of the Sales Agreement or the delivery of the Goods.
6. Prior to the acceptance of shipment from a postal or a courier service, packaging should be checked for any potential damage inflicted in transport. In particular, the condition of tapes or seals placed on the shipment shall be verified. If shipment package shows any signs of damage or if the seals (tapes) are removed, the shipment shall not be accepted, a damage report shall be prepared in the presence of a courier and the Seller shall be contacted as soon as possible in order to clarify the issue. If discrepancies in terms of shipment quantity or quality are not detected at the acceptance, this might adversely affect the resolution of the Client’s claims filed due to shipment damage or theft in transport.
7. In the case of the Goods that represent the firmware upgrade of devices distributed by the Seller (digital content), the Client, upon the placement of the Order, conclusion of the Sales Agreement and payment, shall connect to a GATE CONTROL STATION desktop application via a USB-Link or Blu-Link device and install the upgrade purchased.

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  • PULSAR S HPA Engine with TITAN II Bluetooth® – the world’s smallest & most advanced single solenoid HPA engine. The first HPA engine controlled by an ETU with optical sensors. Thanks to the newest flagship TITAN II Bluetooth® combined with HPA technology you get a ludicrous trigger response, unknown before in the airsoft world. With the user-friendly GCS app for smartphones you can manage your settings live, even straight from the field! Set the fire selector modes, trigger sensitivity, ROF or connect your smartwatch in order to know how many BBs are left in your magazine. You'll find all the electronics inside the gearbox (free space in the butt stock or the grip). For the first time ever, users of HPA replicas can experience a multitude of airsoft replica settings and configurations as well as an optical trigger sensor, which has been till now possible only for AEG users. With the newest sensor, you can set trigger sensitivity unattainable before - even 50 sensitivity points in the first millimeter of movement. Finally, GATE technology breaks into the world of HPA replicas. Take your replica into the future!


    • The best price-performance ratio - highest technologies at reasonable price
    • TITAN II Bluetooth® – the first Bluetooth optical ETU in HPA replica
    • Additionally stabilized nozzle ensures FPS consistency and eliminates Mid-cap syndrome
    • Multifunctional port ready to connect accessories such as Bolt-catch button, magazine sensor, Hop-up chamber tracer, electric magazine power supply or a flashlight
    • Simple maintenance thanks to a well-thought-of build
    • Please note that in the case of dual solenoid engines, it is not possible to connect any extra devices requiring a power supply.
    Caution! The purple nozzle of the HPA PULSAR S engine does not require the use of a stabilizing sleeve in the hop-up chamber. The use of a stabilizing sleeve with the purple nozzle may negatively affect engine performance.
    The golden nozzle of the HPA PULSAR S engine may require additional stabilization. In this case, it is recommended to use a stabilizing sleeve in the hop-up chamber.
  • PULSAR Single Solenoid

    Solenoid Voltage Range

    5-8.4 V

    Operating Pressure

    60-140 PSI – high pressure only

    Gas Consumption

    For 90 PSI and a 48 ci/0.8 l 300 bar/4500 PSI bottle – 1 PSI per shot

    Dimensions (Length x Diameter)

    88 mm x 25.4 mm

    Finished Product Weight

    75 g

    Operating Temperature Range

    min. -15° C, max. +50° C

    Relative Humidity

    ≤ 80%

    Adjustable ROF
    1 to 100 RPS
    200 – 550 FPS

    Operation mode
    Open Bolt

    Pressure range
    60 to 140 PSI

    Due to the nature of the design and operation of the engine, the compatibility range of the nozzle length is between 21.25 mm and 21.40 mm relative to that of the AEG nozzle
  • TITAN II Bluetooth®

    Supply Voltage Range

    3.75-17 VDC

    Rated Current

    30 A

    Current Consumption

    27 mA

    Low Power Mode

    100 µA


    Bluetooth® 5.2 Low Energy

    Dimensions (Length x Width x Thickness)

    47.2 mm x 28.9 mm x 14.5 mm

    Finished Product Weight

    28.2 g

    Operating Temperature Range

    min. -15° C, max. +50° C

    Relative Humidity

    ≤ 80%

    Read more about TITAN II Bluetooth® 

    ASTER and GCS App give you total control of your AEG. ㅤ

    The GCS offers you the option to:

    • Control your airsoft gun from a smartphone with Android, iOS and PC with Windows or macOS

    • Get real-time data from your smartwatch (with Wear OS or watchOS) to reinforce your tactical decisions and get the advantage necessary to win

    • No more surprises with an empty magazine or a discharged battery

    • Easily adjust the ASTER settings during the game

    • Update and upgrade firmware

    • View the BB counters, electrical measurements, and statistics

    • Perform diagnostics and send reports

    • Get the latest news from GATE Enterprise

    Download GCS App 

TITAN II Bluetooth® Features


Two selector sensors allow you to take advantage of hundreds of selector mode variations, depending on firmware edition. The following modes are available for selection*:

SAFE – prevents your replica from firing, even if the safety lever is removed

SEMI – allows you to fire one shot per one trigger pull

BINARY – allows for firing one shot on the trigger pull and another shot upon release 

BURST – enables you to shoot a predetermined number of BBs, which is very useful in MilSims and when using low-caps; there are 2 BURST Modes available: 

  • Full – a burst is shot in full, even if the trigger is released before the preset number of BBs has been shot
  • Interruptible – the burst can be interrupted by releasing the trigger earlier - when the trigger is released, the shooting stops even if not all the BBs from the burst have been shot

BURST/AUTO – available in Full BURST Mode only; allows for extending a burst by any number of shots – if you hold the trigger after the burst is shot, it switches to AUTO Mode 

AUTO – shots are fired as long as the trigger is pulled

SEMI RAMPING – if you pull the trigger very fast, it switches to AUTO Mode

*You can check selector configuration possibilities provided by particular Firmware Editions here

Please note: In the case of Regional Lock, only SEMI Mode is available. Check law restrictions in your country.


This feature allows for simulating magazines of lower capacity than actually used. Depending on Firmware Edition, allows you to set a simulation of magazine capacity from 1 BB up to 250 BBs. Even if you have a high-capacity magazine, this function lets you truly increase the realism of your game by imitating that your magazine is real-cap. Then, after a predetermined number of BBs is shot, you will have to wait for a previously defined amount of time before the next shot can be fired as if you were really replacing an empty magazine with a full one. You can also set Low Ammo Warning.


Enables to set a predefined number of BBs fired in a single series. It can be used as protection against trigger jams. In case of emergency, you can stop the series by switching the selector position.


It lets you set the delay between shots or series to simulate the delay from reload or recoil. You can setthe delay to 0.2 s0.5 s1 s2 s or 3 s for ADVANCED firmware and 0.01-5 s for EXPERT firmware.


ROF Control enables the reduction of a replica’s rate of fire. You can use stronger batteries and still have the ROF exactly as you like. Depending on firmware edition, you can choose between Adaptive, Manual PWM, Manual Delay, and Manual Delay + PWM.

Adaptive – set your desired rate of fire; the brake and delay will be automatically adjusted to achieve this value

Manual PWM – set the motor power throughout the duration of the shot

Manual Delay – set the exact delay between shots in milliseconds

Manual Delay + PWM – set braking power and delay manually


We know how vital fast trigger response during combat is. That's why we've developed the Smart Trigger function, which enables you to achieve faster trigger response. It works with the ROF Control System. During the first shot, the microprocessor sets the ROF control to 100%. After the first shot, it switches to a previously programmed value (e.g. 50%). As a consequence, the first shot is fired at a full ROF and subsequent shots at a reduced ROF. The best results can be achieved when using a battery with above standard voltage. For example, if you’re using a 7.4 V battery, you can replace it with a 11.1 V one. This way, you will achieve faster trigger response with the same rate of fire than with a standard battery. 


Protection against battery over-discharge. Modern LiPo and LiFe batteries are very sensitive to over-discharge. If you do not want to damage the battery and you care about its service life, this protection is indispensable. The microprocessor is constantly monitoring battery voltage. When voltage drops to a critical level, it will not allow firing. The number of battery cells can be detected automatically.


Thanks to the gear sensor, TITAN precisely detects where the cycle finishes. So, even the shortest trigger action produces at least one full cycle. The optical sector gear sensor counts each tooth of the gear, making it possible to use a broad range of gears: DSG, SSG, 19-tooth, and standard ones. In EXPERT Firmware, you can select the cycle manually.


You don't need to fully release the trigger to fire the next shot. This option is really useful when the trigger sensitivity level is very high. Choose between two types of equalizer.

  • OFF - to fire the next shot, you need to release the trigger until it reaches the selected trigger sensitivity level.
  • 2LVL - to fire the next shot, just release the trigger until it moves over two adjoining sensors.
  • 1LVL - to fire the next shot, just release the trigger until it moves over an adjoining sensor.


Thanks to the gear sensor, ASTER V2 SE precisely detects where the cycle finishes. So, even the shortest trigger action produces at least one full cycle. The optical sector gear sensor counts each tooth of the gear, making it possible to use a broad range of gears: DSG, SSG, 19-tooth, and standard ones. In EXPERT Firmware, you can select the cycle manually.

Thanks to the cycle detection function you get:


You don't need to set the burst time—you can set the burst between 2 and 10 shots


Pre-Cocking is fully operational in SEMI, BURST, and AUTO modes and there's no need to set the Pre-Cocking boost manually; you can simply set Pre-Cocking as high, mid or low


When Pre-Cocking is off, ASTER V2 SE ensures that the gearbox completes a full cycle and you gain more reliability


This feature allows you to troubleshoot your AEG in case of any issue. Errors are communicated once they occur, and their description can be found in the GCS App.


This allows you to quickly check whether the drop-in module is working properly. It helps to locate where the problem lies when anything goes wrong.


Thanks to its special conformal coating, our product is resistant to atmospheric conditions (Military Specification MIL-V-173C).

    • Power supply cable (GEL BLASTER/Electric Magazine/Tracer)

    • Single solenoid HPA cable

    • Dual solenoid HPA cables

    • Divider ready for connecting many accessories (you can connect 1x power supply cable and 2x I/O cable)

    • Universal I/O cable for max. 2 DIY accessories (bolt catch & magazine sensors)

    • Bolt Catch with button and cable (ready to connect)

    • Magazine sensor with cable (ready to connect)

    PULSAR S Accessories 

Which engine is best for you – PULSAR S or PULSAR D?

You will find the PULSAR S engine a more economical choice if you can axially align the gearbox correctly. If you are looking for an economical solution for weekend games on small fields and speedsoft competitions – PULSAR S is for you.
If you are looking for the best HPA engine on the market, guaranteeing the best accuracy and performance – PULSAR D is especially for you.




    Number of solenoid valves



    Requires very good axial alignment of the engine in relation to the chamber




    Smallest single solenoid valve HPA engine on the market - for installation in custom replica modifications


    70 RPS – possible higher RPS value with an efficient magazine

    Muzzle Velocity


    Operating Pressure

    60-140 PSI

    Gas Consumption Efficiency

    ~1 PSI per shot at 90 PSI and 0.8 l cylinder


    Fast CQB configurations, the most affordable single-valve HPA engine on the market – ECONOMIC version



    Closed-Bolt or Open-Bolt

    Number of solenoid valves



    Due to its innovative BB feed system and closed-bolt mode, it is definitely less sensitive to replica and assembly quality


    Universal AEG


    Smallest dual solenoid valve HPA engine on the market - for installation in custom replica modifications


    40 RPS – possible higher RPS value with an efficient magazine

    Muzzle Velocity


    Operating Pressure

    60-140 PSI

    Gas Consumption Efficiency

    ~0.7 PSI per shot at 90 PSI and 0.8 l cylinder


    High precision, accuracy, greatest application versatility –the most affordable two-valve HPA engine on the market – PRO version


Browse Manuals, FAQs, and get instant help with technical issues, warranty claims, and order enquiries.


    Transform your AEG into a computerized training system and gain a unique tactical advantage thanks to extremely fast trigger response—just like in real life.


    The younger brother of the well-known TITAN. Designed to achieve maximum reliability at an attractive price and destined for most AEGs. ASTER is destined for most builds.


    Get data in real-time directly from the STATUS screen to reinforce your tactical decisions. No more surprises with an empty magazine or a discharged battery.


    GATE Control Station is a free universal app for configuring, controlling, and connecting the GATE Ecosystem elements such as the TITAN, ASTER and STATUS.


    Virtual STATUS functions in your smartphone. No more surprises with an empty magazine or battery.


    GCS App provides essential STATUS functionalities such as the BB counter, magazine counter, and the remaining shots on the battery.


    Blu-Link allows for wireless management of your GATE ETU via the GCS App. You can use an iPhone, Android smartphone or a computer to control your replica with Bluetooth® 5.0.


    The USB-Link dongle is used for connecting GATE ETUs with PC, Mac, and Android devices. Working in tandem with the GCS App gives you full access to functions and settings.

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