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EMG x Umbrella Corporation Weapons Research Group M4 M-LOK Airsoft AEG Rifle
(Color: Black / SBR / 350 FPS)

ID: 20759 (AEG-EMG-UC-SBR-D-BK-350)
CM.097B UC-350 eShooter
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EMGUmbrella Corp

$359.00

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Product Description

Features

  • Fully licensed by Umbrella Corporation Weapons Research Group; Authentic licensed Umbrella Corporation trademarks on both sides of the receiver, true to its real rifle counterpart
  • High quality aluminum alloy receiver with deep stamped roll marks
  • Ultra slim M-LOK compatible CNC aluminum free float handguard
  • Functional bolt stop hold open for easy hopup access
  • Front and Rear folding iron sights
  • Reinforced TM compatible Ver2 gearbox with electronic trigger and CYMA Quick Buffer System (QBS) for fast and easy spring changes
  • Adjustable length of pull stock
  • Neodymium magnet motor
The Umbrella Corporation Weapons Research Group has been making expertly crafted weapons and weapons accessories since 2007. The design philosophy behind Umbrella Corporation is to offer practical, functional, and well thought out weapons systems that far exceed the expectations of the consumer to provide a definitive advantage.

The EMG Umbrella Corporation WRG M4 faithfully recreates the details of the real rifle. This AEG features high-detail Umbrella Corporation trademarks stamped deep on both side of the receiver, giving it an authentic appearance. The rifle features a light weight, ultra-slim machined aluminum MLOK free-float handguard, prefect for mounting all kinds of MLOK accessories. On top of the rifle you'll find a full-length 20mm Picatinny rail for optics as well as a set of folding front and rear iron sights. The functional bolt stop holds the mock bolt open to give easy access to the hopup adjustment dial.
Internally the EMG Umbrella Corporation M4 features a Tokyo Marui compatible Ver2 metal gearbox featuring heat treated reinforced high speed steel gears (13:1), 8mm steel bearings, full steel toothed piston, and high compression piston head & cylinder. The gearbox was meant to be incredibly high performance right out of the box, while at the same time offering an excellent platform for further tuning and specialty builds.
The EMG Umbrella Corporation M4 borrows a unique feature from CYMA that is the Quick Buffer System (QBS) which allows for rapid spring changes that can be done by hand. This efficient new system only requires the removal of your buffer tube castle nut to gain access to the captured guide rod and spring. No longer is it necessary to break open your receiver or even remove your stock from the buffer tube to change a spring.

Manufacturer: EMG x Umbrella Corporation Weapons Research Group

FPS Range: 325-350

68 Customer Reviews

(Write a review)

by Adan O. on 02/19/2026
"I seen good reviews about this gun and when I got it, they did not lie I got the one of the gate aster and 400 fps snappy response, amazing binary, and really good fully auto I would recommend this to any of my friends
by JJ B. on 02/22/2025
"So, a little back story on why the review. When I was searching for a good rifle, I really appreciated longer reviews on a certain rifle because it allowed me a little more insight into that gun, with specs, difficulties, what is loved about the gun, and etc.
If you didn't read my back story that's ok.
So I am going to start with the pros then cons, and then some neutrals. After that I will add some notes about the gun.
Btw, I got the SBR model for reference, I also replaced the inner barrel with an Angel Custom tight bore inner barrel, and 4UAD bucking and nub. Which is amazing!
Pros
fast, (25 rps.)
accurate
durable
good fps
trigger response is immediate
looks incredible
feels incredible
Anything else about the gun that is not on this list and not on the other lists is a pro!
Cons
sometimes doesn't feed a BB (not a huge problem, happens every couple thousand rounds)
the QD sling mount on the receiver is slightly too big so if enough pressure, the sling mount will pop out without the button on the mount being pressed
the back up iron sight is meh
that's about it, I cant think of anything else.
neutrals
HEAVY!!! for me this is a huge pro, I love the realism of the weight, but can be a con for other players
the rifle sort of shakes when firing
m-lock on most of the hand rail, I personally like, but everyone has preferences
that's about it
the biggest thing to note that I have noticed is when you adjust the motor from the screw on the bottom of the pistol grip, that will impact the performance. So just note that if you are taking your gearbox out, other than that dont touch that screw, it is incredibly hard to get the motor back into a correct position. you will not be able to fix by listening to the sound.
thats about it for this review so overall great gun, if you are in the market for this and you are looking for a new rifle, just stop searching and get this one, this is a good one.
by Nieves C Alfaro I. on 05/28/2024
"Just got the Carbine 400fps version w/ GATE ASTER today and it shoots like a beast. I got a stubby foregrip* and put it on with it to my liking. Its a great starter rifle if you want to spend the money. With the GATE ASTER it took a little longer because they had to drop it in at the warehouse but other than that its solid.
Pros:
Chronoed at 25fps (11.1v battery)
Tight grouping on burst of five at 50ft (15.24m)
sleek design
(Fun to shoot with a tracer)
Cons:
the irons are meh but you probably wont really be using them
Price ($436.08) but with the gate aster and other internals it was a great investment

*PID: 54555

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EMGUmbrella Corp

About EMG

The EMG vision is to manufacture products the world has never seen before; products we would put our name on, and products that hit the spot! "EMG" (Evike Manufacturing Group) was spawned from the realization that if you want something done exactly the way you want it, you need to do it yourself, and we did just that.
We took our 16 years of knowledge as the market's lead retailer, our network of 300+ superior manufacturers, to work with inspiring top innovators in the firearms industry. That combined with the vision to invest into the Airsoft industry, an industry we believe in, EMG was born.

About Umbrella Corp

Umbrella Corporation is a research, development, and engineering firm incorporated in 2007 with primary focus on small arms design to include complete weapon systems as well as functional parts and accessories that exceed the expectations of the consumer, provide definitive advantage, value added performance, and no-compromise quality. Ingenuity, innovation, with a dedicated commitment towards perfection defines our philosophy.