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Matrix / S&T Sportsline M4 RIS Airsoft AEG Rifle w/ G3 Micro-Switch Gearbox (Model: Dark Earth URX 8")

ID: 77845 (AEG-ST-AEG-294-DE)
Matrix859188778450ST-AEG-394-DE / STAEG394DE77845
4.7 stars, based on 130 reviews
Matrix / S&T Sportsline M4 RIS Airsoft AEG Rifle w/ G3 Micro-Switch Gearbox (Model: Dark Earth URX 8)
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Canada Export CompliantCanadaExport Compliant
This gun has a muzzle velocity rating (FPS) between 366 and 500, and is compliant for export to Canada.
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Free shipping within lower 48 US states, no coupon code needed!


  • Matrix / S&T Gen 3 Lipo ready gearbox with micro-switch trigger and quick change spring guide
  • Integrated MOSFET for improved power usage, motor performance, and trigger response
  • High strength nylon fiber reinforced polymer receiver, stock, buffer tube, grip
  • Flat top receiver allows mounting of optics or other accessories
  • Adjustable 6 position SOPMOD style stock
  • Metal 300rd high-cap magazine
  • Aluminum rail system; great for attaching accessories
  • Flip up front and rear sights
The Newly improved G3 gearbox developed under collaboration between Matrix and S&T offers the same features found in the G2 series such as a microswitch trigger, improved steel gears, full steel teeth piston, and aluminum cylinder. New to the G3 series gearboxes is an improved QD spring system which makes it even easier to swap to different strength springs without disassembly. The inline MOSFET features over discharge protection and the electric trigger features a magnetic sensor for improved responsiveness.

Manufacturer: Matrix

FPS Range: 395-400

Color: Dark Earth


Length: 710mm-795mm
Weight: 5 lbs
Inner Barrel: ~300mm
Range: 100~200 feet
Magazine Capacity: 300rd Hi-Cap magazine included. Compatible with Matrix, Tokyo Marui and other similar M4 / M16 Series Airsoft AEG Magazines
Muzzle Velocity: ~350 - ~380 FPS (Measured with 0.20g BBs)
Thread Direction: 14mm Negative
Gearbox: Ver 2 Full Metal, Fully Upgradeable / with Micro-Switch trigger / Lipoly Ready (15~20C)
Motor: Long Type / High torque
Fire Modes: Semi/Full-Auto, Safety
Battery: 9.6v NiMh 1600mAh / 11.1v LiPo Butterfly Type recommended (Wired to buffer tube w/ a Small Tamiya connector)
Hopup: Yes, Adjustable
Package Includes: Gun, High Cap Magazine

About Matrix

Established in 2001 for Airsofters by Airsofters. Team Matrix thrive on the vision to better the sport of Airsoft with affordable high quality Airsoft equipment. With decades of experiences as Airsoft enthusiasts ourselves, we live, sleep, and breathe Airsoft. Matrix offers a wide selection of skirmish grade replicas from rifles to pistols, a wide variety of accessories, and tactical equipment from helmets to boots. It is the Matrix mission to prepare every Airsoft shooter the perfect experience!

About S&T

S&T is a group of Airsoft enthusiasts that produces rifles and parts based on the trends in the Airsoft industry. Their mission is to supply a wide range of quality products with the most competitive pricing for dealers and consumers alike. S&T was founded in 2009 with their HQ office located in Hong Kong, a subsidiary office in Japan, as well as Airsoft / Airgun manufacturing facilities in China.

130 Customer Reviews

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by Wes D. on 03/22/2021
"Players at local field starting to take notice that these $150 guns smoke. Everyone is like “$150!?” Absolutely worth getting 3 fun variations of these than one overpriced $450 “quality” gun. Problem is they aren’t easy to find on the site so I end up sending the link to everyone. Evike’s dirty secret. “They are on page 165 in your search results, but we have great guns on the secret menu for cheap.”
by Clifford C. on 12/28/2020
"Matrix S&T (Smart Team rebrand) Dark Earth Stubby

I have owned a few (3?) airsoft guns but never competed seriously. This gun was purchased for use at the local CQB field (it is almost identical to the model of this gun they loan out) and it chronographs at 350fps with .20g BBs. This was the exact limit for the field.

-Sturdy construction. Polymer is a plus because of weight. If you want a heavy gun we cannot be friends... that gets tiring fast (milsim training purposes not withstanding).
-Quick change spring! What a surprise to see that inside the gearbox. I cannot stress enough how much quick change spring setups simplify all work on gearboxes. If you have not tried it, you should.
-Handles 11.1v lipo without any changes necessary and has yet to explode. Field is semi-auto only so trigger spam is a thing. Caveat: 2s will semi-auto for several mags before becoming a bit warm. 3s (11.1v) gets warm around 400 BB's and "hot" around 800.... this is steady semi-auto with no breaks. Not the intended use case for the design so of course it struggles.
-Cost effective for value gotten: QC spring, CQB legal from the box, handles 3s voltages, sturdy polymer frame, metal gearbox (only 1 ball bearing I saw, but that's 1 more than my Cyma AK has)... not at all a bad deal. That QC spring is worth its weight in gold.

-Stock is a bit cramped for batteries... but I swapped mine out for a fixed stock and that's a non-issue. The buffer tube section stocks fit over is a bit short and could represent a weak point. Will update if I break it somehow... December 2020 so far so good?
-As mentioned the gun begins to heat up on 3s lipo, but this was stress testing and frankly I have yet to make it through a CQB game where I expended the whole high-cap magazine. Most of my time is spent going "where is everyone". Not a good LMG... but did you really buy this to be an LMG???
-Sights are not at all useful if you've got a paintball style mask, but this is true of ALL sights and not really a failure of this gun. Just something to know... low profile mask systems may not experience this problem.
-Amplifier is not easy to remove at all. I have no idea how it comes off. I'm going to just replace the outer barrel entirely and that should solve that. Note you will be forced to do battle with it if you intend to mount tracer/silencer. Obviously, it makes the gun really bloody loud... maybe you don't care though?
by Wes D. on 12/28/2020
"The hidden gem of Evike. I have 4 of these guns: the one with the grenade launcher attached, two 5” stubbies with the amplifier and the 8” Umx. All guns shoot fantastic. My son has a krytac, but can’t let go of his dark earth 5” (the ones with the amplifiers are loud as F, but puts the fear of god in a room!). Trigger is amazing, rate of fire is very good. There is very little wrong with these guns if anything at all. For 135-150 dollars, I haven’t bought anything else, there is just no reason to spend more unless you are doing this professionally.

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