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Matrix Sportsline M4 Airsoft AEG Rifle w/ G3 Micro-Switch Gearbox (Model: Black M4 URX Carbine 12")

ID: 67943 (AEG-ST-AEG-71-A-BK)
4.8 stars, based on 99 reviews
Matrix Sportsline M4 Airsoft AEG Rifle w/ G3 Micro-Switch Gearbox (Model: Black M4 URX Carbine 12)
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  • Matrix / S&T Gen 3 Lipo ready gearbox with micro-switch trigger and quick change spring guide
  • Integrated mosfet for enhanced power / motor performance, trigger response, and fully upgraded lipo ready internals.
  • 14mm negative threaded outer barrel with Easy to adjust rotary hop up.
  • Adjustable six position crane stock allowing for use of a wide variety of batteries.
  • Semi, full auto, and safe select firing modes. Utilize common fit universal M4 AEG magazines!
  • Functional dust cover and mock bolt stop for easy access to hopup adjustment. Railed AR15 type receiver for mounting Picatinny / Weaver compatible optics and accessories.
  • High strength nylon fiber reinforced polymer receiver, stock, buffer tube, grip, and carrying handle.
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: 365-400

Color: Black


Length: 800mm-880mm
Weight: 4.25lbs
Inner Barrel: ~370mm
Range: 100~200 feet
Magazine Capacity: 300rd Hi-Cap magazine included. Compatible with Matrix, G&G, Tokyo Marui and other similar M4 / M16 Series Airsoft AEG Magazines
Muzzle Velocity: 365~400 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, 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!

99 Customer Reviews

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by GUANGLIN H. on 01/28/2021
"This is my first time writing a review, even thought I have bought more than 20 airsoft guns from EVIKE. This M4 amazingly surprises me. Never fooled by the average quality polymer receivers, buffer tude, handguards, hup-up unit and etc, it shoots excellent. The fps is around 380, faire enough., and it shoots fast. The most surprising aspect of this M4 is the accuracy despite its average built internal parts. The grouping is up to the level of a sniper rifle of high quality. Furthermore, the fast reacting trigger amases me, thanks to the MOSFET. You don't see such a feature within many high end guns. After all, this is an undoubtedly excellent airsoft gun.

Excellent accuracy
Good fps and rps
MOSFET provided
Fast changing of spring, an excellent feature
Lightweight, can be handled with one hand, even with a M203 attached
Extremely economic choice, with a M203 launcher!

Obviously the average quality polymer material, which is supposed to be the outcome of balance of performance and cost. Understandable.
The connection of buffer tude and receiver is loose because of stripped screw of spring guide. I have to remove the cover plate between buffer tude and receiver to extend the coupling the screw and spring guide
by DAVID K. on 11/10/2020
"RIC FLAIR WOOOOOOOOO! That trigger though! I bought 2 on sale for 90 a piece for spares and they both do work! For the price, I was not disappointed!
by Michael D. on 09/29/2020
"First a Correction:
Received mine with a rear wired small tamiya connector. This was a great win for me.

* I am so impressed with this AEG! Price aside, the performance of this M4 is on par with the Lancer Tactical Gen 2 Pro-Hybrid offerings.
* The Microswitch Trigger is the shining star internally.
Because of it being rear wired, taking the handguard and off and punching out the pins on the front sight assembly is a breeze. I was able to have a cost effective 14" M-LOK handguard which is a perfect length for this one piece outer barrel.
* I am very content with the polymer elements of this AEG. My first M4 was alloy and found myself wishing I had something lighter. I ended up with an ARP9 and found I lost serious range. Length of the inner barrel is 14", and effective range is not a problem. Swapped it out with a 6.01 steel inner and a maple leaf bucking with matching tensioner and I didn't find enough of a difference. So I went back with the lighter brass inner barrel and love the feel of this.

- The only con I could find is the regulation flash hider is affixed with strong glue and a solid pin. It takes cutting if you want to be able to remove it in order to remove the front sight assembly. So pick up a fresh orange tip.

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