Delta Armory Airsoft

If you're a discrete skirmisher in search of an AEG which can be an assault rifle one day and a DMR the next, check out the Delta Armory DA-A10-EGL ALPHA™ SilentOps DMR M4/AR-15 AEG! This full metal ALPHA™ line AEG is rocking the latest and greatest MOSFET/ETU from Delta Armory, known as the EAGLE™, and is dressed to impress on the outside with a CNC aluminium KeyMod handguard, integral suppressor and the latest Delta Armory furniture.

The EAGLE™ ETU adds a whole new level of functionality to the Silent Ops DMR setup. Using only the trigger and fire selector of the gun itself, you can program the EAGLE™ for burst modes of various duration, binary trigger, sniper delay, semi-auto only, AUG mode, pre-cocking, trigger sensitivity and active braking. The result is an incredibly advanced M4 AEG with the option to quickly change the spring, lock to semi and run it as a DMR without needing extensive internal work!

The EAGLE™ joins the reinforced gearbox shell, SHS piston with a full steel tooth rack, a quick change ball bearing spring guide and a 6.03mm tightbore inner barrel paired with a rotary HOP-up unit, giving you impressive performance and advanced features for a respectable price point. If you've always fancied a DMR but want a flexible setup in case you change your mind, the Delta Armory DA-A10-EGL ALPHA™ SilentOps DMR M4/AR-15 AEG is the ideal does-it-all platform for you!

If you're after a DMR-ready build capable of locking to semi with a quick change spring system, this bundle will interest you! We have paired a DA-A20-EGL TEMPEST 2 M4/AR-15 AEG with the impressive Delta Armory 1.5-5x40BE LPVO with mount and the HASTA NEBULA Tactical Mist Tracer Unit Gen.2. If you're shooting outdoors, we recommend Delta Armory 0.28g Bio Tracer BBs for this beast!

The DA-A20-EGL TEMPEST 2 is a great DMR basegun, being far easier to convert than others thanks to its EAGLE MOSFET and quick change spring system. You can either run the Misty Marksman Gen.2 as it is with full auto at the ready or program the trigger to semi-auto only and switch out the spring to make it into a proper DMR for long-range engagements. With the Nebula Mist tracer unit mounted, you can see exactly where your BBs go, even in a foggy forest setting or low light environment. If you had a DMR build planned for 2025, you can save yourself a bit of cash with the Misty Marksman Bundle!

If your dust cover won't stay closed, this will sort it! The Delta Armory Dust Cover Lock for M4/AR-15 AEG is a replacement original parts set for Delta Armory M4/AR-15 AEGs but may also fit other AEGs with similar dust cover designs. The set includes the dust cover lock, lock cover, spring and the mounting screw. 

If you seek a compact CQB platform with a solid full metal build, the Delta Armory DA-A03-EGL ALPHA™ SilentOps CQB M4/AR-15 AEG should be on your shopping list! This ALPHA™ line AEG is equipped with Delta's latest programmable ETU/MOSFET system, known as the EAGLE™. 

The EAGLE™ transforms this already impressive little beast with a range of programmable fire modes, including 3 or 5-round burst mode, binary trigger, sniper delay, AUG mode, semi-auto only, adjustable precocking and adjustable trigger sensitivity. Being electronic, the trigger will never suffer a dreaded semi-auto lockup, making the DA-A03-EGL a fantastic CQB tool for fire supremacy. When it comes to outdoors, this little menace ain't no slouch! The pre-installed 6.03mm tightbore inner barrel and rotary HOP-up unit ensure it can still do the job when engaging targets at long range. 

A generously equipped platform with full compatibility with aftermarket V2 gearbox upgrade parts, the DA-A03-EGL is one of the best-value SBR-style AR platforms out there currently. Mobile, agile and hostile despite its realistic full-metal build, the Delta Armory DA-A03-EGL ALPHA™ SilentOps CQB M4/AR-15 AEG is ready for any challenge that awaits it!

If you prefer shorter AR platforms and want something full metal with a programmable MOSFET, the Delta Armory DA-A13-EGL ALPHA™ 8" M-LOK M4/AR-15 AEG is one of the best options out there. Equipped with an M-LOK handguard constructed from CNC machined aluminium, the unique Delta Armory receiver, an ergonomic pistol grip and a pre-installed aluminium angled foregrip, you have little left to do on the outside other than add your favourite optic!

Inside, we're also remarkably well-equipped! Inside, we have a reinforced V2 gearbox shell, SHS piston with a full steel tooth rack, a quick change ball bearing spring guide and a 6.03mm tightbore inner barrel paired with a rotary HOP-up unit, giving you impressive performance and advanced features for a respectable price point. Also present inside is the Delta Armory EAGLE™ programmable MOSFET/ETU, a serious game changer!

With the EAGLE™ ETU, you can program the fire controls for burst modes of various durations, binary trigger, sniper delay, semi-auto only, AUG mode, pre-cocking, trigger sensitivity and active braking using only the trigger and fire selector of the gun itself. The result is an incredibly advanced M4 AEG with almost unlimited flexibility via the advanced EAGLE™ ETU and full compatibility with aftermarket upgrades for those who want more. If you like your ARs as cutting edge on the inside as they are externally, the Delta Armory DA-A13-EGL ALPHA™ 8" M-LOK M4/AR-15 AEG should suit you perfectly!

If you've lost your front body pin, you're in luck! The Delta Armory Front Body Pin for M4/AR-15 AEGs is a replacement original part for Delta Armory M4/AR-15 AEGs with a polymer receiver but should also fit most other brands, such as Specna Arms, Lancer Tactical and Evolution. The pin slides straight into your receiver and may require some force to ensure it is tightly secured.

Keep your assault rifle in one piece with a replacement Delta Armory Steel Front Body Pin For M4/AR-15 AEGs, nobody wants their receiver to fall to bits out on the battlefield!

If you're looking for a pouch that covers both your primary and sidearm, the Delta Armory MOLLE AR/Pistol Tactical Combo Pouch is the one for you! This pouch features a section for both a standard M4 magazine and a pistol magazine, so you can make sure your loadout is covered with one convenient pouch. This pouch mounts to MOLLE making it compatible with chest rigs, plate carriers and tactical belts.

The top of the pouches are open, and the magazines are held in place using bungee pressure retention, meaning magazines can be quickly and effortlessly removed during tactical reloads, and placed back in the pouches easily without using any noisy Velcro or press studs. 

If you're looking for a handy way to store magazines for both your platforms on the battlefield, the Delta Armory MOLLE AR/Pistol Tactical Combo Pouch is exactly what you need!

If you're looking for a pouch that covers both your primary and sidearm, the Delta Armory MOLLE AR/Pistol Tactical Combo Pouch is the one for you! This pouch features a section for both a standard M4 magazine and a pistol magazine, so you can make sure your loadout is covered with one convenient pouch. This pouch mounts to MOLLE making it compatible with chest rigs, plate carriers and tactical belts.

The top of the pouches are open, and the magazines are held in place using bungee pressure retention, meaning magazines can be quickly and effortlessly removed during tactical reloads, and placed back in the pouches easily without using any noisy Velcro or press studs. 

If you're looking for a handy way to store magazines for both your platforms on the battlefield, the Delta Armory MOLLE AR/Pistol Tactical Combo Pouch is exactly what you need!

If you're looking for a pouch that covers both your primary and sidearm, the Delta Armory MOLLE AR/Pistol Tactical Combo Pouch is the one for you! This pouch features a section for both a standard M4 magazine and a pistol magazine, so you can make sure your loadout is covered with one convenient pouch. This pouch mounts to MOLLE making it compatible with chest rigs, plate carriers and tactical belts.

The top of the pouches are open, and the magazines are held in place using bungee pressure retention, meaning magazines can be quickly and effortlessly removed during tactical reloads, and placed back in the pouches easily without using any noisy Velcro or press studs. 

If you're looking for a handy way to store magazines for both your platforms on the battlefield, the Delta Armory MOLLE AR/Pistol Tactical Combo Pouch is exactly what you need!

If you're looking for a modernised full-metal M4A1, the DA-A02 ALPHA™ M4A1 RAS AEG from Delta Armory is exactly that. This ALPHA™ line AEG boasts some great internals, featuring reinforced internal parts from SHS, CNC aluminium cylinder group parts, CNC machined 18:1 steel gears and a 6.03mm tightbore inner barrel.

On the outside Delta has added a gunfighter mod.3 style pistol grip, the classic ALPHA™ style stock and an enhanced receiver, complete with gripping texture on the magazine well and a built-in enlarged trigger guard. This gives the now old-school M4A1 a bit of a facelift without ruining its iconic outline and maintaining suitability for casual and Milsim skirmishes. If you love the M4A1 silhouette but want more modern ergonomics, the Delta Armory DA-A02 ALPHA™ M4A1 RAS AEG is ideal!

If you're looking for a modernised full-metal M4A1, the DA-A02 ALPHA™ M4A1 RAS AEG from Delta Armory is exactly that. This ALPHA™ line AEG boasts some great internals, featuring reinforced internal parts from SHS, CNC aluminium cylinder group parts, CNC machined 18:1 steel gears and a 6.03mm tightbore inner barrel.

On the outside Delta has added a gunfighter mod.3 style pistol grip, the classic ALPHA™ style stock and an enhanced receiver, complete with gripping texture on the magazine well and a built-in enlarged trigger guard. This gives the now old-school M4A1 a bit of a facelift without ruining its iconic outline and maintaining suitability for casual and Milsim skirmishes. If you love the M4A1 silhouette but want more modern ergonomics, the Delta Armory DA-A02 ALPHA™ M4A1 RAS AEG is ideal!

If you are rocking theDelta Armory M24 R700 Sniper Rifle and need some spares for the battle, you're in luck! This magazine is designed exactly for this platform and holds 24 BBs, not a lot, but when you consider it's for a sniper rifle, a couple of these will last you a long time on the battlefield.

With spare Delta Armory 24rnd Magazines, you'll be able to stay in the battle for longer, camping in the perfect position, waiting for the unfortunate opponents to cross your sights.!

A set of Two Scope Rings for 25mm Optics, which easily attach to 20mm RIS/RAS Rail Systems to install your Rifle Scope on an Airsoft Gun. These rings are Low Profile, meaning your Scope will be mounted snugly to your Rail System. Keeping your scope close to your rail is good for seeing exactly where your BBs go after firing them.

Being a two-piece design, and coming included with an Allen Key, they are very easy to install. The scope rings mount to standard 20mm Picatinny rail sections. To attach them to your rifle scope you must use an Allen key to take off the top sections of the rings, then place your scope in and reattach the top sections of the rings. 

If you have a night game in the great outdoors or you run 0.30g BBs in a tracer-equipped platform in CQB, Delta Armory 0.30g Diamond 6mm BIO Tracer BBs should be on your shopping list! These BBs are supplied in a 1KG resealable bag of approximately 3330 BBs and are high-grade polished BBs to ensure reliable feeding and maximum accuracy potential.

When shot through a tracer unit, these BBs will illuminate in bright green so you can see where your shots land and adjust your aim accordingly. Being made from biodegradable materials means these BBs are suitable for outdoor skirmishing at any site in the country or target shooting in the back garden.

If you're looking for a super compact chest rig, the Delta Armory Tactical Buckle Up Vest is perfect for you. This low-profile chest rig is based on a famous real steel design used when mobility is a priority and space is restricted, including work inside vehicles, carrying out reconnaissance and duking it out in confined spaces. 

The rig is made from Nylon fabric with polymer buckles and steel eyelets for drainage, it features two M4 magazine pouches, and additional zip pouches on each flank for some gear such as small radios, grenades, multitools or other mission essentials. The chest rig's size is adjustable using the straps but it can also be removed from the straps and instead clipped into a compatible chest rig or plate carrier.

If you like the liberating feeling of skirmishing in a simple chest rig which carries everything you need, the Delta Armory Tactical Buckle Up Vest should put a smile on your face!

If you're looking for a super compact chest rig, the Delta Armory Tactical Buckle Up Vest is perfect for you. This low-profile chest rig is based on a famous real steel design used when mobility is a priority and space is restricted, including work inside vehicles, carrying out reconnaissance and duking it out in confined spaces. 

The rig is made from Nylon fabric with polymer buckles and steel eyelets for drainage, it features two M4 magazine pouches, and additional zip pouches on each flank for some gear such as small radios, grenades, multitools or other mission essentials. The chest rig's size is adjustable using the straps but it can also be removed from the straps and instead clipped into a compatible chest rig or plate carrier.

If you like the liberating feeling of skirmishing in a simple chest rig which carries everything you need, the Delta Armory Tactical Buckle Up Vest should put a smile on your face!

If you're looking for a super compact chest rig, the Delta Armory Tactical Buckle Up Vest is perfect for you. This low-profile chest rig is based on a famous real steel design used when mobility is a priority and space is restricted, including work inside vehicles, carrying out reconnaissance and duking it out in confined spaces. 

The rig is made from Nylon fabric with polymer buckles and steel eyelets for drainage, it features two M4 magazine pouches, and additional zip pouches on each flank for some gear such as small radios, grenades, multitools or other mission essentials. The chest rig's size is adjustable using the straps but it can also be removed from the straps and instead clipped into a compatible chest rig or plate carrier.

If you like the liberating feeling of skirmishing in a simple chest rig which carries everything you need, the Delta Armory Tactical Buckle Up Vest should put a smile on your face!

If you're looking for a super compact chest rig, the Delta Armory Tactical Buckle Up Vest is perfect for you. This low-profile chest rig is based on a famous real steel design used when mobility is a priority and space is restricted, including work inside vehicles, carrying out reconnaissance and duking it out in confined spaces. 

The rig is made from Nylon fabric with polymer buckles and steel eyelets for drainage, it features two M4 magazine pouches, and additional zip pouches on each flank for some gear such as small radios, grenades, multitools or other mission essentials. The chest rig's size is adjustable using the straps but it can also be removed from the straps and instead clipped into a compatible chest rig or plate carrier.

If you like the liberating feeling of skirmishing in a simple chest rig which carries everything you need, the Delta Armory Tactical Buckle Up Vest should put a smile on your face!

These scope rings are designed to hold an Airsoft rifle scope with a tube diameter of 25mm. Scope rings are useful as they allow you to attach your scope to very small sections of Picatinny rail, such as the small sections often found on sniper rifles. These mounts are High Profile, which means they will hold your Optic a little higher than standard, which is ideal for those who use Lower Face Protection and struggle to aim down their Scope. 

Being a two-piece design they are very easy to install. The scope rings mount to standard 20mm Picatinny rail sections. To attach them to your rifle scope you must use an Allen key to take off the top sections of the rings, then place your scope in and reattach the top sections of the rings. 

If you prefer shorter AR platforms and want something full metal with a realistic weight, the Delta Armory DA-A13 ALPHA™ 8" M-LOK M4/AR-15 AEG is one of the best options out there. Equipped with an M-LOK handguard constructed from CNC machined aluminium, the unique Delta Armory receiver, an ergonomic pistol grip and a pre-installed aluminium angled foregrip, you have little left to do on the outside other than add your favourite optic!

Inside, we're also remarkably well-equipped! Inside, we have a reinforced V2 gearbox shell, SHS piston with a full steel tooth rack, a quick change ball bearing spring guide and a 6.03mm tightbore inner barrel paired with a rotary HOP-up unit, giving you impressive performance and advanced features for a respectable price point. If you like your ARs as cutting edge on the inside as they are on the outside, the Delta Armory DA-A13 ALPHA™ 8" M-LOK M4/AR-15 AEG should suit you perfectly!

If you're seeking a superb starter AEG in AK flavour, the Delta Armory DA-C12 CHARLIE™ AK-47 AEG; Classic should be in your sights! Part of Delta Armory's CHARLIE series, this AK-47 Type 3 replica is made from a mix of high density polymer and alloy with steel trim parts, keeping it lightweight and agile, ideal for younger skirmishers or those who like to move fast!

Inside, we're equipped with a 6.03mm tightbore inner barrel, offering superb accuracy with high-quality ammo paired with an alloy slider HOP-up unit to tune for different ammo weights. The gearbox is a Tokyo Marui-spec version 3 with an alloy shell and steel gears, with a quick-change spring system for easy power tuning. All internals are fully upgradable, meaning if you want more down the line, the DA-C12 is ready for it!

Marrying the classic AK-47 aesthetic with convincing faux-wood furniture and all the details needed for a proper og Type 3 AK replica, the DA-C12 is a fantastic, affordable way to fill that AK-shaped hole in your collection and shoots well as a bonus! If you're an AK kinda guy looking for a budget primary or loaner AEG, you can't ask for much better than the Delta Armory DA-C12 CHARLIE™ AK-47 AEG; Classic!

If you need a compact AR for CQB or a sniper's backup, the DA-B16-EGL BRAVO™ TALOS 1 PDW M4/AR-15 AEG is ideal. This beastly little AR is lightweight and extremely compact, making it ideal for fast movers and those who need a backup platform with more firepower than a pistol. Inside, the TALOS 1 has some exciting features as a bonus, giving you far more bang for your buck than its rivals!

The Delta Armory EAGLE™ programmable MOSFET is the cherry on top of a superb external build, offering the option of burst mode, binary trigger, semi-auto only, sniper delay, progressive trigger (AUG mode), precocking and trigger sensitivity adjustment. A seriously advanced bit of kit, the EAGLE™ allows you to program all of these modes using the trigger and fire selector only, with no need for apps, programming cards or other hidden costs! Also inside is a 6.03mm tightbore inner barrel, rotary HOP-up unit and the usual Delta Armory compliment of SHS reinforced internals. 

Delta's gift to those struggling with longer platforms in CQB, the TALOS 1 gives you ultra-modern externals, well-equipped internals and the perfect balance between low weight and the satisfying realism of metal parts. If you need a primary that won't slow you down with plenty of programmable fire mode options by default, the DA-B16-EGL BRAVO™ TALOS 1 PDW M4/AR-15 AEG is the one!

Looking for an assault rifle with longer-range capabilities? The Delta Armory DA-A14 ALPHA™ 10" M-LOK M4/AR-15 AEG is here to satisfy that craving! Delta Armory brings the sharp style of real-life M4s and combines it with some premium internals to make it a fierce opponent on the battlefield both indoors and outdoors!

As with the other ALPHA™ line AEGs from Delta Armory, the DA-A14 boasts full metal construction with flawless machining. The internals of this AEG features an SHS piston with a full steel tooth rack, SHS tappet plate, rotary hop-up chamber and 6.03mm precision barrel. The advantage of this gun is the quick change QRS Gen. 2 spring - you change the spring without disassembling the gun. Whether you are going full DMR with this build or using it as it comes, you are very well-equipped for long-range warfare with the DA-A14!

Looking for an assault rifle with longer range capabilities? The Delta Armory DA-A14-EGL ALPHA™ 10" M-LOK M4/AR-15 AEG is here to satisfy that craving! Delta Armory brings the sharp style of real life M4s and combines it with some state-of-the-art internals to make it a fierce opponent on the battlefield both indoors and outdoors!

Containing the new EAGLE™ ETU, theDA-A14-EGL ALPHA™ 10" M-LOK M4/AR-15 AEG has a whole new level of functionality. You can program the EAGLE™ ETU by using the trigger and fire selector of the platform and choose between a variety of modes. These include burst modes of various duration, binary trigger, sniper delay, semi-auto only, AUG mode, pre-cocking, trigger sensitivity and active braking. An incredibly advanced assault rifle with a superb price-to-quality ratio, thank you Delta Armories!

As with the other ALPHA™ line AEGs from Delta Armory, the DA-A14-EGL boasts full metal construction with flawless machining throughout. The internal parts of Delta's EGL AEGs are an SHS piston with a full steel tooth rack, SHS tappet plate, rotary hop-up chamber and 6.03mm precision barrel. The advantage of this gun is the quick change QRS Gen. 2 spring - you change the spring without disassembling the gun. Whether you are going full DMR with this build or using it as it comes, you are very well-equipped for long range warfare with the DA-A14-EGL!

If you're a CQB specialist or a fast-moving outdoors skirmisher seeking an M4 platform with a sneaky aesthetic, the Delta Armory DA-A04 ALPHA™ Silent Ops 8 M4/AR-15 AEG is one to watch. Being an AEG of Delta's ALPHA™ line, this beast boasts a CNC aluminium quad-rail handguard, aluminium suppressor and the unique Delta Armory billet-style receiver, giving it a cutting-edge, brutal look with plenty of accessory options built in.

Inside, you will find the usual complement of Delta Armory pre-upgraded internals, including a reinforced V2 gearbox shell, SHS piston with a full steel tooth rack, a quick change ball bearing spring guide and a 6.03mm tightbore inner barrel paired with a rotary HOP-up unit for impressive long-range effectiveness. The 18:1 ratio steel gearset runs on 7mm ball bearing bushings, reducing gearbox noise and friction.

Focussing on long-term reliability, the DA-A04's internals are well suited to new skirmishers or experienced Airsofters looking for a reliable backup or starting point for a custom build. If this sounds like you, the Delta Armory DA-A04 ALPHA™ Silent Ops 8 M4/AR-15 AEG will serve you well!

If you are looking for an easy way to make your Airsoft platform exclusively a DMR or CQB beast, this is worth checking out! The Delta Armory Programmable ETU Processor Unit for V2 Gearbox; Semi Only replaces your conventional trigger assembly and offers semi-automatic fire only with adjustable pre-cocking, which can be programmed in using the fire controls of the AEG itself. 

This ETU should fit most M4/AR-15s which use a version 2 gearbox, but we only recommend this part for experienced techs and those in the know when it comes to Airsoft internal upgrades. The ETU is also pre-wired to a Deans/T-Plug battery connector in rear wired configuration and spade connectors for your motor, so you shouldn't need your soldering iron!

If you want to reload faster while keeping your eyes up, the Delta Armory Flared Magazine Well Extension for P-Series GBB Pistols is the key! This flared magwell is constructed from CNC machined aluminium and is compatible with the Delta Armory DA-P series EU17 GBB range. It may fit other brands, but we cannot guarantee it! 

Flared magazine wells have been a popular upgrade for competition pistols for decades now but have recently found their way onto high-end tactical sidearms intended for combat. Designed to guide your magazine in so you can reload "eyes-up" or speed up your reloads without risking missing the magwell, a flared magazine well can save you hours of training and get you back online faster, ready to bag that all-important kill!

On either side, Delta's Flared Magazine Well Extension includes discretely yet cleanly engraved Delta Armory branding, matching well with the aesthetic of the DA-P series for a professional, completed look. The front features a slight extension designed to function as a palm rest, ensuring you have a consistent grip and thus maximum accuracy every time you draw your sidearm. If you want to reload like John Wick but don't have time to train all day and night, the Delta Armory Flared Magazine Well Extension for P-Series GBB Pistols will give you the edge you need!

If you're working on a high-speed or high FPS build, the Delta Armory Version 2 CNC 8mm QSC Gearbox Shell will save you a lot of heartache in the long run! This ultra-strong version 2 gearbox shell is CNC machined from the best aluminium around, known as 7075 T651. This means if you're running a super strong spring or going for a dual-sector gear build, this gearbox shell has what it takes to keep running in the long term, being considerably stronger than standard alloy gearbox shells.

The QSC Gearbox shell also features radiused cylinder window corners to better distribute force and is pre-cut for Gate TITAN/ASTER, Perun Hybrid or Delta Armory ETU MOSFET systems, meaning no need to get the Dremel out to add advanced functionality. The bearing ports are 8mm in diameter, making this the perfect host for Bolster Armouries EZO Ball Bearing Bushings. If you're reaching for the stars when it comes to performance and want your build to last more than a few bursts, the Delta Armory Version 2 CNC 8mm QSC Gearbox Shell is what you need!

If you're running a Delta Armory DA-P series EU17 GBB pistol and want to reload faster, this is the key! The Delta Armory Extended Magazine Catch for P-Series GBB is constructed from high density polymer, designed specifically for the DA-P series but potentially compatible with other Gen.3 style EU17 frames (no guarantees though!).

This extended magazine release features a textured surface for optimal grip in all weather and is much wider than the standard mag release, making it easier to reach for smaller hands. The set includes the entire mag release assembly other than the spring, though the original mag release spring used in the DA-P series is a perfect fit. A super affordable upgrade to make pistol handling much easier, this Extended Magazine Catch is just what you need to speed up your reloads!

The VZ.58 is not an AK, do not get confused! It may share some silhouette similarities but the VZ.58 is a unique platform that was the standard service rifle for the Slovakian military from 1959 to 1984. This Delta Armory replica is licensed by the Real Steel Firearms company Czech Small Arms which is the only manufacturer of SA VZ.58 rifles. The DA-VZ58 is based on the SA VZ.58 Sporter Carbine except with a longer outer barrel. The trademarks to indicate this can be found on the AEG.

Internally, the DA-VZ58 features some of the high-quality pre-upgraded Delta Armory internals such as an EFCS programmable MOSFET 18:1 ratio steel gears, a quick change spring system, a unique gearbox design and a high torque motor. The EFCS MOSFET allows the fire modes to be reprogrammed for burst modes and semi-auto only using the Ares EFCS programmer (available separately) and also features a low-voltage cutoff function, protecting your battery from being damaged if the voltage drops too low.