Gate ASTER™ MOSFET - What does it do?

Gate ASTER™ MOSFET - What does it do?


The GATE ASTER™ V2 is the younger brother of the well-known TITAN™ V2. As the world's first 4th generation AEG Control System, the ASTER™ is designed for most AEGs with a V2 gearbox on the market, including stock, low- and mid-tuned AEGs and even for high-tuned guns when using the EXPERT firmware. The GATE ASTER™ was designed to achieve maximum reliability at an attractive price as an alternative to the more complex and expensive TITAN™ MOSFET. 

Transform your AEG by replacing the trigger contacts with a computerized controller equipped with innovative optical sensors, including a proximity trigger sensor which offers even 250 sensitivity settings. The GATE ASTER™ offers a unique opportunity to gain a tactical advantage thanks to an extremely fast trigger response and lots of other useful functions. The ASTER even has its own specific Gate CNC trigger designed to interact with its optical sensors, known as the Quantum

The ASTER's smart fuse protects your AEG’s battery, motor, and the controller itself, even in case of reverse battery connection. This feature, along with the optical sensors, makes the ASTER™ the most durable drop-in unit on the market. You choose how to configure the ASTER™ – simply via the trigger or through USB-Link / Blu-Link* and GATE's GCS (GATE Control Station) App. To enjoy the full potential of the ASTER™, you can upgrade its firmware to ADVANCED or EXPERT.

What does the ASTER™ MOSFET do?

  • Protection against battery reverse polarity
  • Increased rate of fire and trigger response due to improved electrical efficiency
  • Proximity trigger sensor which offers 250 possible sensitivity settings!
  • Option to configure its main settings simply via the trigger or completely through the GATE Control Station App for AndroidWindows and macOS (also for iOS with GATE Blu-Link Bluetooth® dongle)
  • Built-in RGB led provides visual cues to make programming easier
  • Removing the safety lever is not required
  • No modification of the gearbox shell needed, even in the case of ICS and KRYTAC (ASTER Revision 1 requires the bolt catch lever to be removed when used with a KRYTAC Gearbox. Newer ASTER revisions are fully compatible.)
  • The optical gear cam sensor supports all types of gears: Infinite Torque-up, DSG, SSG, 19-tooth, and standard
  • Binary trigger/Burst mode option as a basic function
  • Compatible with the GATE Quantum™ CNC Trigger (firmware version 3.1-03 or later) - 470 trigger sensitivity settings
  • Premium level functionality at a fair price – Great price-performance ratio

AEGs with the GATE ASTER™ inside

There is a selection of AEG rifles available with the Gate ASTER™ pre-installed for those who don't fancy handling the installation process themselves. These rifles are a great pick for a beginner who wants ASTER™ functionality but doesn't have experience with AEG internals, allowing you to avoid the messy build process and get straight to shooting. Let's check them out!

Specna Arms SA-H22 EDGE 2.0™ Carbine AEG

The SA-H22 is a long-barreled 416 style M4/AR15 variant with the legendary EDGE 2.0™ internals, including a 6.03mm tightbore inner barrel, the ORION™ reinforced gearbox, and of course, the Gate ASTER™ MOSFET. 


The H22 boasts full metal construction and a 14.5-inch outer barrel, making it a perfect piece for woodland warfare, and its upgraded EDGE 2.0 internals pair perfectly with the ASTER™ for a ferocious rate of fire and trigger response. 

Specna Arms SA-H23 EDGE 2.0™ Carbine AEG

The SA-H23 is the short-barreled variant of the H22, and offers the same ultra-modern external design aesthetic with a shorter 10.5-inch outer barrel, making it a great tool for close-quarters battle and an asset to a fast-moving aggressive player out in the woods. 


Other than the length of its inner and outer barrel, the SA-H23 is identical in internals to the H22, offering the ORION™ gearbox, a 6.03mm tightbore inner barrel and a high torque motor. With the ASTER™ pre-installed, there is very little else to upgrade on the H23! 

Specna Arms SA-H21 EDGE 2.0™ Carbine AEG

The SA-H21 uses the same internals as the H22 but replicates the ever-recognisable original 416 with its 20mm quad Picatinny railed handguard. This makes the H21 a fine choice for a Milsim player, and its plethora of 20mm Picatinny rails means you can attach anything you need to compete to the H21 without the need for additional rail adapters. 


You guessed it, the H21 is rocking the impressively equipped Specna Arms ORION™ gearbox, complete with a high torque motor, quick change spring system and reinforced steel gears running on 8mm ball bearing bushings. This is a brilliant feature set already, but with the ASTER™ in there, boy does this thing rip! 

Specna Arms SA-H20 EDGE 2.0™ Carbine AEG

Just like the H22/H23 relationship, the SA-H20 is the CQB variant of the H21 with a shortened 10.5-inch outer barrel, but the same highly functional quad railed handguard and exceptional internals, including the Gate ASTER™. 


With full metal construction and Specna Arms' Nanocoating process applied to its metal parts, the H20 looks immaculate on the outside, and its precise 6.03mm tightbore inner barrel and rotary HOP-up unit give it the poke to duke it out with the big boys at longer ranges despite its compact overall form! 

Specna Arms SA-E12 EDGE 2.0™ Carbine AEG

The SA-E12 rocks the same phenomenal EDGE 2.0™ internals but in a standard M4/AR15 receiver format with a 7-inch KeyMod handguard with pre-installed 20mm rail adapters and a 7.5-inch outer barrel, making this a lean, mean CQB machine! 


Like the H series, the E12 and the other EDGE 2.0™ AEGs are constructed with the same exact proportions of metal to polymer as the real M4/AR15, making for a realistic handling experience that is hard to beat. Internally the SA-E12 has the same game-changing internals as the H series, making it one to watch on the field! 

CYMA CM.041H SMG-5 Patrol Base X Gate ASTER™ Upgraded Edition

Naturally, we saved the best for last. Our very own Bolster Armouries tech team have recognised the potential in the Gate ASTER™ and decided it was the perfect MOSFET to add to their CM.041H Upgraded Edition. These upgraded CM.041H have been hand built and tuned by the same team that brought you the phenomenal Bolster Armouries ONYX Advanced M4 AEG, and they have more to come soon!


The Patrol Base X Gate ASTER™ CM.041H takes advantage of the superb quality components inside the original mass-produced CM.041H and refines them with some choice parts, elbow grease, Waldo Customs lubricant and the useful insight only an experienced Airsoft tech team can provide. This upgraded AEG shows what the ASTER™ can do when it is really put to the task, and the result is exceptional, to say the least! 

So, now you know a bit more about the Gate ASTER™ and how it can change the game for more advanced skirmishers looking for a new experience. If you want to read a bit more of the nitty gritty, you can find more info on Gate's ASTER™ homepage