Two-Tone Airsoft Assault Rifles

If you're in search of a modernised Krinkov replica which is as much of a killer in-game as it is in looks, the Bolster Tuned CYMA CM.113B AKS-74U Zco Custom Upgraded AEG has your name on it! Based around the already impressive CM.113B Zco Custom, this beast has been refined by the talented techs of Bolster Armouries, furnished with some choice internal upgrades and tuned to get the absolute best out of the stock internal parts.

This new generation of Tuned AKS-74U is rocking a Warhead 27K Brushless Motor, Bolster Armouries EZO bearings, a Bolster Armouries AOE Correction Washer along with complimentary parts to keep it running reliably long term. Replacing the Kestrel Basic ETU, we have the space-aged Gate ASTER™ ETU, offering a wealth of programming options and equipped with the latest EXPERT Firmware. Amongst its many advantages over the Kestrel Basic, you can add the Gate Blu-link to program the ASTER™ with its wealth of customisation options on your phone using Bluetooth!

The HOP-up has been enhanced with a 4UANTUM Friction Pro High-Performance Hop Up Bucking to extend the range out to 60 meters and beyond and to bring the trigger into line with modern AR AEGs, the Bolster Armouries AK Trigger Spacer has been fitted, shortening trigger travel to a hair for an incredible response rate in semi-auto. The team has fitted theGate Power CNC Aluminium Hybrid Piston Head  to enhance air-seal qualities for minimal FPS deviation between shots. Unlike other custom Airsoft gun services, Bolster Tuned platforms are all pre-built and ready to ship the next day with no lead time!

A lot of extra work was put in to refine the mass-produced CYMA gearbox and make it run like a Bolster. The inner surfaces of the gearbox have been polished for reduced friction and modified to house the ASTER™ ETU. The cylinder windows have been radiused, increasing the strength of the shell to withstand the force of repeated piston impacts and the bearing holes have been smoothed out to reduce friction. The angle of engagement has also been corrected using the Bolster Armouries AOE Correction Washer, meaning 11.1V LiPo's are a go for the Tuned CM.113B, perfect for high rate of fire fiends!

While the original CM.113B is a very impressive shooter, the Bolster Boys have ushered forth its true potential in the Bolster Tuned version. If you're ready to dominate your next skirmish with a pre-upgraded piece which hits out to 60 meters with a spectacular rate of fire of 26 rounds per second, the Bolster Tuned CYMA CM.113B AKS-74U Zco Custom Upgraded AEG is ready for you!

If you dream of a 417-based DMR but are worried the incredible mass of the full metal options may compromise your in game agility, this is your dream come true! The Golden Eagle E6906 M-417 DMR is constructed almost entirely from high density polymer with an alloy outer barrel and buffer tube, making this big boy rifle as light as a feather.

Just like the full metal version, this high density polymer M-417 is equipped with an in-line MOSFET, 6.04mm tightbore inner barrel and quick change spring guide on the inside, giving you a head start when it comes to building your dream DMR with easy power tuning thanks to its quick change spring system.

On the outside, there may be far less metal than the full metal model but you have the same plethora of 20mm Picatinny rails, ergonomic pistol grip, 14mm CCW male threaded barrel and AR buffer tube paired with a 417 style wide profile stock. If you want a decked-out special forces style DMR without the ridiculous heft, this is the way to go!

A 6mm BB Airsoft Electric Gun, based on a customised variant of the AR36K designed for use as a Marksmans rifle.

A replica of the MC51 rifle with a 20mm Picatinny railed handguard to give the old gun a fresh feel and bring it into the modern era. The Picatinny handguard allows mounting of all manner of accessories and the rifle comes complete with a receiver scope mount; this thing is just begging to be laden down with mission essentials!

If you have unconventional tastes and fancy a hybrid of the best of both the civilian and military firearms worlds, check out the Delta Armory R15 FREYA™ Gen.2 MK18 M4/AR-15 AEG. This full metal M4/AR-15 platform is rocking the extremely popular MK18 MOD.1 quad rail up front with the unique skeletonised receiver FREYA™ receiver, based on the real steel GrandPower Firearms R15 FREYA™ rifle. This is the Gen.2 version, boasting the best combination of Delta Armory internals yet!

Internally, the Gen.2 FREYA™ MK18 features CNC steel 16:1 high-speed gears, a CNC steel cylinder and spring guide, a CNC aluminium piston head and cylinder head and a high torque motor to top it off. These parts join the usual Delta Armory SHS reinforced tappet plate, SHS piston and 6.03mm tightbore inner barrel, resulting in an impressive down-range effect and a significant improvement over the original but still respectable FREYA™ Gen.1 series. 

If you love a strange combination with an advanced ETU, the Delta Armory R15 FREYA™ Gen.2 MK18 M4/AR-15 AEG should put a smile on your face. With the same stunning externals as the original but outfitted with a game-winning combo of the advanced EAGLE™ MOSFET and high-speed ETU internals, this unique MK18 build is at the top of its game!

An absolute pleasure to hold and shoot. Don't let the budget price tag put you off. This AK is rock solid and every shot is lovely and crisp. The wood is genuinely real and finished to a high quality with no fraying or splintering on any edges. 

This Airsoft Electric Gun is the combination of awesome external build quality, up-rated internal parts and quality of life features such as a Microswitch Trigger, MOSFET and Quick Change Spring system to create the ultimate Value for Money / New Player Gun. If you're looking for a rapid trigger response and high rate of fire out of the box, you can stop searching now.

If you're in search of a full metal MK18 replica with solid build quality and top-tier performance, the EMG CM.105 Daniel Defense MK18 MOD.1 AEG; Kestrel Basic ETU is one of the best options out there! Officially licenced by Daniel Defense via EMG, this full metal AR is rocking full DD trademarks, a superb replica of the RIS II quad rail handguard and CYMA's Platinum E-Edition internals, giving it museum-worthy looks and intense downrange effect.

Inside, you'll find a reinforced V2 gearbox with CNC steel 13:1 high-speed gears, a CNC aluminium ball bearing piston head, a CNC aluminium double O-ring cylinder head, 8mm ball bearing bushings and a high torque neodymium magnet motor. Also present inside is a 6.03mm tightbore inner barrel and alloy rotary HOP-up unit, giving you the range and accuracy to get the job done at long ranges. The pre-installed Kestrel Basic ETU adds some advanced functions into the mix, offering programmable fire modes including a 3-round burst and binary trigger and 6 levels of adjustable pre-cocking; a major improvement over the Zeus MOSFET of the original.

The perfect platform for a US Navy SEAL loadout with a mission-ready feature set with plenty of room for accessories, there are many reasons the MK18 MOD.1 platform is so favoured amongst Airsofters. This, the EMG CM.105 Daniel Defense MK18 MOD.1 AEG; Kestrel Basic ETU is one of the best out there, capable of going toe-to-toe with the best both in the tight confines of CQB and in outdoor environments!

What better way to show your fandom of the awesome John Wick movie series than collecting replicas of all the pistols and rifles wielded by our hero? With the advent of the EMG Taran Tactical Innovations JW2 M4/AR-15 AEG, that goal has become closer than it ever has been! The EMG JW2 boasts full metal construction, a flawless finish and absolutely incredible performance, as we might expect from a replica manufactured by CYMA Platinium with official licencing from TTI itself.

On the outside, we have a 14.5-inch smooth profile outer barrel with a TTI muzzle brake, a CNC machined aluminium KeyMod rail system, the uniquely designed Taran Tactical AR-15 receiver and flawless engraved and laser engraved TTI markings across the design, perfectly replicating the rifle used by the boogie man in John Wick: Chapter 2.

The internal parts are equally impressive; the JW2 boasts a 6.03mm tightbore inner barrel, alloy rotary HOP-up unit, extensively upgraded CYMA Platinium high speed E-Edition internals, a high speed motor and the CYMA Platinum MOSFET to keep everything in check. If you want to bury the other team like JW does to all the goons in the film, the EMG JW2 should give you your best chance!

If you have a thing for modernised AKs, you'll love this! The CYMA Platinum SLR Airsoft Works AK-105 AEG is absolutely packed with pre-upgraded parts and is officially licenced by SLR Rifleworks with detailed replicas of SLR parts across the design. Boasting the incredible CYMA Platinum E-EDITION High Speed internals, this AK-105 is absolutely devasting in-game and to make matters all the sweeter is equipped with an internal tracer unit mounted to the HOP-up and powered by the AEG's battery.

This means you can light the enemy up with tracer BBs without adding any extra length or weight to your gun, adding in a rare innovation usually only found on the aftermarket and requiring a certain amount of expertise to wire in. An impressive feature made even better in combination with the AK-105's other upgraded parts and flawless build quality. The SLR AK-105 boasts full metal construction with a large proportion of steel in the build, a 6.03mm tightbore inner barrel, high torque Neodymium magnet motor and much, much more!

Whether this is your first AK AEG or you are adding to a collection of AKs, the CYMA SLR AK-105 is a solid choice with great performance and the party trick of lighting up tracer BBs with no need for an aftermarket tracer unit!

Looking for the base gun for your Airsoft DMR build? The Ares AR-308 series are uniquely equipped for this role, being patterned after real steel AR-10 battle rifles, the M4/AR15's big brother. The AR-308 series are built to dominate, being kitted out with a high torque motor, quick change spring system, the Ares EFCS trigger unit and a rotary HOP-up unit with the opportunity to lock the AEG to semi, either using an Ares programmer unit or mechanically by installing a replacement selector lever if you want to build the inside of the AR-308 to suit the DMR styling of the externals.

The AR-308S is the shortest in the AR-308 line and makes use of a compact 9.5-inch outer barrel with a 9-inch M-LOK handguard, and the unique Ares Pro stock pistol stabilising brace, offering 4 positions of adjustment. The external build quality of this AEG is absolutely exceptional, with razor-sharp machining throughout and a beautiful matt metallic bronze finish applied. We aren't sure what is more impressive; the high-quality feel of this AEG or its exceptional trigger response and rate of fire, which our fingers cannot outrun on a 7.4V LiPo!

If you like an aggressive military-style AR, the CYMA CGS 14.5" M4A1 RAS SOPMOD GBBR should suit your needs. This full metal gas blowback rifle is based on the real steel M4A1 in SOPMOD Block 1 configuration, equipped with a CNC aluminium 20mm Picatinny quad rail patterned after the real steel KAC RAS. This is the perfect platform for a US Army impression!

Internally, this beast is based on the Tokyo Marui ZET system, giving you the best current option for GBBR internals with the widest aftermarket for upgrade parts. You won't need many upgrades though; with almost entirely steel trigger parts, a steel bolt carrier, a steel bolt catch and a 6.04mm tightbore inner barrel, the CGS M4A1 is probably the best out-of-the-box GBBR available currently!

This compact platform is exactly what you need for your close-quarters battles. It is short and lightweight, making it a great asset for those who like to stay nimble during their skirmishes. The Specna Arms SA-C21 CORE™ HAL¹ ETU™ M4/AR-15 AEG has an entry-level price point, with veteran-level potential!

This SA-C21 is rocking Specna's HAL¹ ETU, boasting programmable fire controls and several quality-of-life functions built-in, all for barely more money than the original. The HAL¹ allows you to select binary trigger, AUG mode and sniper delay instead of semi-auto and semi-auto lock, 3-round burst or 5-round burst instead of full auto. Also available are 5 levels of trigger sensitivity adjustment, 6 levels of adjustable pre-cocking, active braking and a low battery voltage alarm. Like the original, the HAL¹ equipped version also has a 6.03mm tightbore inner barrel, giving it above-average accuracy potential and a slight rise in FPS from the same strength spring.

This BO Dynamics DIAMONDBACK DB15 AP305 7" M4/AR-15 AEG is a lightweight and easy-to-use rifle, it is constructed from a high-density polymer that is scratch-resistant. It also features a preinstalled Helios muzzle attachment that can be removed. This package also includes an 11.1V crane battery, a balance charger, a grip and 2x 20mm Picatinny rail sections. This is a brilliant deal for new players as it includes everything they could possibly need in one package.

This AEG is also equipped with a MOSFET and ETU with programmable firing modes, this is an amazing feature for the relatively low price and gives newer players a chance to experiment with different firing modes and the preinstalled MOSFET will protect your rifle from short circuits and burnouts.

If you're a fan of staying light on your feet, sneaking up on the enemies and generally causing mayhem on the battlefield, then the BO Dynamics DIAMONDBACK DB15 AP305 7" M4/AR-15 AEG is perfect for you and your playstyle!

If you're looking for an affordable long-range AR with a unique modern look, the DA-A09 ALPHA™ from Delta Armory is one to watch. This M4/AR-15 AEG is based on real steel LVOA-style AR-15s, boasting a 16.2-inch outer barrel and handguard along with an equally long 6.03mm tightbore inner barrel, ideal for outdoor skirmishing or a DMR build. 

Inside the DA-A09, we are treated to the same pre-upgraded internal parts as the other offerings in Delta's ALPHA™ line, including a 6.03mm tightbore inner barrel, CNC Type A trigger, rotary HOP-up unit and an upgraded piston, delayer chip and tappet plate from SHS.

The result of these premium parts is an AEG which shoots far better than one would expect for the price with full TM compatibility for the upgrade addicts. Whether you decide to wack a big scope on it and get to work or instead build it out into a fully-fledged DMR, the DA-A09 makes a fantastic outdoor skirmishing platform! 

If you are looking for something to keep heads down at an outdoor skirmish, or something to upgrade to a DMR in the future, the CM.068D is perfectly suited to the task! This M4/AR15 platform AEG sports full metal construction, a 6.03mm tight bore inner barrel, long quad 20mm Picatinny rail handguard, and extended controls, but the real icing on the cake is its silent piston and cylinder heads, which significantly muffle the gearbox noise. This rifle is a few choice upgrades away from DMR capability, but performs surprisingly well as it is!

If you're looking for a solid, modern M4/AR-15 AEG fitted with some of the best stock internals out there, the CYMA Platinum CM.097A M4/AR-15 AEG; Kestrel Basic ETU is one to watch! The latest version of the original CM.097, this version is equipped with the EShooter Kestrel Basic ETU, the perfect compliment to its thoroughly upgraded Platinum E-Edition internals!

The Kestrel Basic ETU offers programmable fire modes including 3-round burst and binary trigger, adjustable pre-cocking, active braking, cycle completion, low battery warning and low/high voltage protection. The Kestrel keeps your gearbox cycling at maximum efficiency and with pre-cocking set, provides an incredibly snappy trigger response ideally suited to rapid double taps. The other CYMA Platinum internals include 13:1 ratio high-speed gears running on 8mm ball-bearing bushings, a CNC aluminium "silent" ball-bearing piston head, double O-ring cylinder head, quick change ball-bearing spring guide and a high-speed motor to top it off! 

On the outside, the CM.097A is very well equipped, ready to host M-LOK or 20mm Picatinny accessories and equipped with a 14mm CCW male threaded outer barrel, ready for your tracer unit or suppressor. If you like the sound of a solid, proven high-performance M4/AR-15 AEG made even better with advanced, programmable firemodes, the CYMA Platinum CM.097A M4/AR-15 AEG; Kestrel Basic ETU will suit you perfectly!

If you are a fan of the SCAR platform but you prefer to play CQB the Cyber Gun SCAR-SC has your name on it! The SCAR-SC is the Subcompact variant of the original FN SCAR MK16 rifle which was designed to replace the M4A1 in special forces service. The SCAR-SC boasts a shorter front end than the original SCAR, and a super compact sliding PDW stock, making it a fantastic tool for clearing tight corners when things get up close and personal.

The SCAR-SC has a CNC machined Aluminium upper receiver and a polymer lower receiver with ambidextrous controls, just like the real thing. Inside we are treated to an Ares EFCS gearbox and a slim type motor, resulting in a snappy trigger response and granting the ability to program burst modes with the Ares EFCS programmer. If you want a SCAR that can keep up with M4 PDWs in CQB, this is the only one!

If you are searching for the best CQB platform out there, the CYMA Platinum SLR Airsoft Works AKS-74U AEG; Tracer HOP-up is definitely worth considering. Absolutely brimming with upgraded parts including a MOSFET, 13:1 CNC steel gears, CNC aluminium piston and cylinder head, a high torque Neodymium magnet motor and a 6.03mm tightbore inner barrel, this lil AK shoots like a laser and its built-in tracer HOP-up gives it an instinct aiming and psychological warfare advantage when exchanging fire at kissing distance.

Externally, the SLR AKS-74U definitely meets the high standards CYMA AKs are known for, with full metal construction including a steel receiver and top cover, CNC aluminium "Solo Krink" handguard, AK Billet stock and Synergy Mini-Comp with full licencing from SLR Rifleworks. The modern furniture enhances handling considerably and also allows modern accessories to be easily mounted, from suppressors to red dot sights, vertical grips and tactical flashlights.

Whether CQB is your poison or you have an aggressive playstyle and like to get right in the enemies' face, the CYMA Platinum SLR AKS-74U will be an asset to your arsenal. Built like a tank with almost as much firepower, don't let its size fool you, this compact AK comes with full-size performance!

Show your colours and make some noise! The Ghost Patrol Carbine SDU 2.0 has both style and substance. With metallic blue accents on the barrel, trigger and fire selector as well as a menacing sound-amplifying muzzle device and spring-loaded stock so you're always ready to take some names in a skirmish!

If you like the AK aesthetic and want something new, the ARCTURUS AK-12 AEG Rifle; Optical MOSFET is the meanest-looking AK out there! This full metal beast replicates the real steel AK-12 in its Russian Armed Forces-issued format, boasting an almost entirely steel and stamped steel build resulting in one of the most authentic AK handling experiences Airsoft has to offer. Make no mistake, this is a hefty platform!

Inside the version 3 gearbox, we are treated to the usual ARCTURUS complement of low-friction internals including 18:1 ratio steel gears running on 8mm ball-bearing bushings and a 23TPA high torque motor for a super-snappy trigger response. The pre-installed optical MOSFET makes things even sweeter, offering programmable fire modes, adjustable active braking, adjustable trigger sensitivity and adjustable pre-cocking. This AK-12 also includes a 4th fire selector position offering 2 round burst, just like the real AK-12!

As with other ARCTURUS AK releases, the Optical MOSFET-equipped AK-12 is at the peak of AEG realism with flawless quality externals and advanced internals with full aftermarket compatibility. If you're in the mood for a modern AK but prefer the military-issued look over the "tactical AK" look, the ARCTURUS AK-12 AEG Rifle; Optical MOSFET will give you what you need!

If you are looking for a primary for your Vietnam war loadout this will do the trick! Complete with period accurate XM177E1 sound and flash moderator and 2 position XM177 style stock, the CM.009D XM177E1 is the old school tacticool carbine from a time before the M4!

If you're all about full metal ARs with an ultra-modern exterior, the CYMA Platinum CM.097F M4/AR-15 CQB AEG; Kestrel Basic ETU is one to watch! A revamped version of the original Platinum CM.097F, this version keeps the ultra-speedy pre-upgraded gearbox internals of the original and adds advanced functionality into the mix via the pre-installed EShooter Kestrel V2 Basic MOSFET/ETU.

The Kestrel Basic ETU offers programmable fire modes including 3-round burst and binary trigger, adjustable pre-cocking, active braking, cycle completion, low battery warning and low/high voltage protection. The Kestrel keeps your gearbox cycling at maximum efficiency and with pre-cocking set, provides an incredibly snappy trigger response ideally suited to rapid double taps. The other CYMA Platinum internals include 13:1 ratio high-speed gears running on 8mm ball-bearing bushings, a CNC aluminium "silent" ball-bearing piston head, double O-ring cylinder head, quick change ball-bearing spring guide and a high-speed motor to top it off!

A pre-upgraded AR AEG for cutting corners tight up close, the CYMA Platinum CM.097F M4/AR-15 CQB AEG; Kestrel Basic ETU is a solid choice for CQB players or those who appreciate a compact build with superb handling. With a trigger response which is hard to beat, compatibility with 11.1V LiPo batteries and high-speed internals refined with the addition of the Kestrel Basic ETU, this latest CM.097F is CYMA's gift to the CQB specialist or fast moving woodland warrior!

The CM.097A Platinum edition provides a complete, high-end AEG out of the box. With pre-upgraded features such as a Micro-switch trigger, MOSFET, and quick change spring system built into the premium gearbox the Cm.097A Platinum edition offers incredible performance and a package that is half the price of its rivals.

If you're in search of an M4/AR-15 AEG and seek a more realistic feel and weight, the Ares X-Class Model 6 AR-090E M4/AR-15 AEG is what you need. This full metal M4 platform is a unique Ares design inspired by the most modern AR platforms in the real steel world, boasting a uniquely design receiver with waffle gripping texture, an M-LOK handguard and compact PDW sliding stock. One of the coolest aspects of the externals is the Ares slim pistol grip, designed to mimic the dimensions of real AR grips for a GBBR-like realistic feel!

Inside, we are equipped with a version 2 gearbox with 18:1 steel gears, a quick change spring system and the Ares EFCS MOSFET, providing programmable fire controls using an Ares EFCS programming box (not included) and low voltage cutoff to protect your battery. The EFCS also improves electrical efficiency and pairs perfectly with the pre-installed slim high torque motor to provide a snappy trigger response in semi, ideal for pumping out suppressive fire in CQB. If you want a solidly built, realistic AR that isn't a GBBR, the Ares X-Class Model 6 AR-090E M4/AR-15 AEG is a fantastic choice!

If you have a thing for modernised American AKs, this one should be up your street! The EMG Rifle Dynamics RD-701 AEG; Kestrel Basic ETU is absolutely packed with pre-upgraded internal parts and boasts licensed trademarks from Rifle Dynamics with detailed replica Rifle Dynamics parts across the design. Boasting some incredible pre-upgraded parts from the CYMA Platinum Edition rifles, this AK variant is absolutely devasting in-game and to make matters all the sweeter is equipped with an internal tracer unit mounted to the HOP-up and powered by the AEG's battery.

The tracer HOP-up is a rare addition to stock Airsoft rifles, usually a rare innovation only found on the aftermarket and requiring a certain amount of expertise to wire in. An impressive feature made even better in combination with this RD-701's other upgraded parts and flawless build quality. The RD-701 boasts full metal construction with a large proportion of steel in the build, a 6.03mm tightbore inner barrel, a high-speed Neodymium magnet motor and much, much more!

so, if you fancy treating yourself to an AK platform, the EMG Rifle Dynamics RD-701 AEG is a great high-performance option, plus, its party trick of lighting up tracer BBs without an aftermarket tracer unit required!

Looking for a mid-ranged, SF-approved AEG rifle? The CM.105 is a full metal AEG with official licensing from Daniel Defense through Evike Manufacturing Group (EMG). This means it comes with perfectly engraved and absolutely authentic Daniel Defense trademarks on the magazine well, a licensed MK18 MOD1 style quad 20mm Rail System, and even more DD markings laser engraved into the side of the upper receiver. The CM.105 isn't just a looker, it also sports the same spritely rate of fire and trigger response as other AEGs in the CYMA Platinum lineup thanks to its high speed motor, and pre-installed ETU/MOSFET. This AEG looks the part, and shoots fantastically, so what are you waiting for?

The CM.623 is the perfect starter gun, coming bundled with a MOSFET, Quick Change Spring, Microswitch Trigger and a reinforced Nylon Fibre body for an amazing price.

The BO Dynamics DIAMONDBACK DB15 AP300 7" M4/AR-15 AEG is a lightweight and beginner-friendly rifle, it is constructed from a high-density polymer that is scratch-resistant. It also features a preinstalled Helios trademarked muzzle attachment that looks incredible. This package also includes an 11.1V crane battery, a balance charger and 2x 20mm Picatinny rail sections. This is a brilliant deal for new players and is a great way to get your Airsoft career started.

This AEG is also equipped with a MOSFET and programmable firing modes, this is an amazing feature for the relatively low price and gives newer players a chance to experiment with different firing modes and will protect your rifle from short circuits and burnouts.

If you're a fan of staying light on your feet, sneaking up on the enemies and generally causing mayhem on the battlefield, then the BO Dynamics DIAMONDBACK DB15 AP300 7" M4/AR-15 AEG is perfect for you and your playstyle!

Those looking for a lightweight backup weapon with a fully-fledged special forces style look you can't do much better than the ST46 from S&T. This AEG is designed to look similar to a popular real-world platform and the PDW style stock makes it very compact and optimal for close-quarters battles.

The ST46 is constructed from both alloy and polymer, making it a great choice for those with less physical strength or those who are a bit clumsy and may bump, scrape or drop their AEG. A high-density polymer receiver may be less realistic, but it will not show scuff marks as readily as an alloy receiver might thanks to its dyed nature allowing it to maintain its looks far better than a painted or anodised finish.

On the inside the ST46 has an alloy version 2 gearbox with a Rotary HOP-up unit, setting it up to be competitive and upgrade-compatible without overcomplicating things by reinventing the wheel. Its MOSFET protects the internals from any electrical damage and also improves the trigger response. If you need a lightweight solution, either as a primary or a backup, the S&T ST46 Sports Line PDW M4/AR-15 AEG is the perfect rifle for you!