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Pre-Order ETA February 2023 Matrix Full Metal M240B Airsoft AEG Squad Automatic Weapon w/ Box Magazine

ID: 50809 (AEG-MTX-M240B)
6668 / M240
Matrix8591885080956668 / M24050809
3.6 stars, based on 21 reviews
Pre-Order ETA February 2023 Matrix Full Metal M240B Airsoft AEG Squad Automatic Weapon w/ Box Magazine
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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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This is a pre-order item with an ETA (estimated arrival) of February 2023

A pre-order item is an up coming new product, or an item in the process of being restocked to the platform by it's manufacturer.By pre-ordering an item, you will have reserved the inventory availability to receive it before the goods arrive. All pre-order items are eligible for a full refund at any time during the waiting period; simply call or drop us an email with the order # and the pre-order item you would like to cancel for an immediate refund. Due to circumstances such as US customs inspection, factory delays and other situations out of our control, all ETAs (estimated time of arrival) are estimated to our best ability and are subject to change.


  • Heavy duty metal receiver, carrying handle, and mock heat shield
  • CNC Machined aluminum outer barrel w/ Quick detach barrel system, like the real thing
  • Integrated front RIS for additional tactical attachments; 20mm Picatinny optic rail
  • Steel folding bipod with integrated locking tab
  • 4000rd automatic winding box magazine, plugs directly into the gun's battery power
  • Machined CNC aluminum hopup unit
  • Heavy-duty polymer stock with metal butt plate
  • Metal M240B style gearbox with lipo ready internals
In the late 1970's the US Army adopted a new 7.62mm medium duty machine gun into their ranks: the M240. It was first used as a coaxial machine gun in tanks but slowly made its way to other mounted uses by the late 1980's, the updated model referred to as the M240C. Due to a surplus of M240C's the Army passed some on to the USMC. When the Marines got their hands on the M240C they installed an "infantry modification kit", thus spawning the M240G, the first infantry model of the M240. Having seen the success of the M240G and its effectiveness as a ground mounted 7.62mm machine gun, the US Army decided to test and eventually adopt the M240B, the slightly updated factory production variant of the M240G, into its ranks to replace their outdated M60E4's. Throughout its years of service the M240 has proven itself, in all its variations, to be an effective, reliable medium duty combat machine gun.

The Matrix replica of the M240B does a great job at capturing the hefty, tried and true durability of the real thing. It's made from heavy-duty materials giving it a great feel, and features some really nice fit and finish. The Matrix M240B stays true to layout of the real thing with its steel folding bipod, heavy duty carrying handle, a 20mm Picatinny optics rail, and the 20mm Picatinny front end. The quick-detach outer barrel system makes it extremely easy to clean and service the inner barrel when needed, and the hopup adjustment system is very easy to use. The Matrix M240B comes supplied with a 4000rd automatic winding box magazine that plugs directly into the main power, so no need for any extra, odd-sized batteries. The battery sits inside the polymer stock, which is built like a tank and very easy to remove when a battery change is necessary. Internally the Matrix M240B features a full metal, fully reinforced lipo ready gearbox, so parts are readily available here at

In summary, this is the best M240B Airsoft replica on the market if you are shopping for one!

Manufacturer: Matrix

FPS Range: 400-450

Color: Black


Length: 1245mm
Weight: 8200g
Inner Barrel: ~440mm
Magazine Capacity: 4000rd box magazine
Muzzle Velocity: 400~450 FPS (Measured with 0.20g BBs)
Gearbox: M240B type full metal / lipo ready gearbox
Motor: Short Type
Fire Modes: Full-Auto, Safety
Battery: 9.6v Small Type recommended (Battery not included. Wired to the stock with a Large Tamiya connector)
Hopup: Yes, Adjustable
Package Includes: Gun, Box Magazine, Manual


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!

21 Customer Reviews

(Write a review)

by Steve C. on 12/09/2019
"Love this gun, very good range, accuracy, and rate of fire. Gun sounds pretty darn good. I don't know why people complains about the weight because to my believe this is lighter that my A&K M60VN. Great gun.
by Stephen M. on 04/21/2019
"I bought one of these the day they appeared in the UK. I’d always wanted a (What we call in the UK) GPMG. Yeah, I know it’s not the same, but it’s the only FN Mag on the market and the closest I’ll come to having a real Brit GPMG ever again.

I used to be our teams support gunner and have been through M60’s (I even have 2 TOP M60’s, vintage eh, plus a few of the A&K’s and some very rare ones. Also M249’s in different configs, a couple of Stoners (Do defo buy a G&G Stoner 63 if you can, PKM, MG34, MG42, CZ, and a load of other weird MMG’s, Ha, even a BAR). This without even blinking is the best EVER!.

I used it as my day gun and used it every weekend for about 4 years. I ran it on a 350 spring but that was the only upgrade/downgrade I made. On average I’d go through about 10,000 each weekend (I didn’t say I was good, just enthusiastic).

I think I cleaned the barrel every month, the gearbox just once over all that time. The only time it was out of service was when I leant it to someone I hardly knew for one game, he managed to trip over a log, smash the mag pouch into a tree and shear all the holding lugs off. EVIKE managed to send me replacement for all part! To the UK! On such a RARE gun! I was very impressed. And she was back up and running like a bream the day I got those.

This M240 or GPMG or FN MAG, whatever you want to call it is LEGENDARY to me. When I die, I want to be buried with it.

The only downsides I found are:
You have to understand support gunning, this is NOT an assault gun.
Get to the Gym, this is HEAVY
It’s also cumbersome... Not for CQB lol
Awkward and silly to the max (You could do the same thing with an MP5K, massive external battery and huge drum mag)

Good points:
Never Ever went wrong
You can load and fire at the same time.
It intimidates
You’ll get a good workout
You can stop an entire team assault, on your own, if you have the b*lls
After doing a “Predator” style “constant fire without releasing the trigger, until everything is dead” you may find your team mate who had to hit the dirt 3 mins earlier turning to you and saying “HOLY F*** THAT WAS AWESOME”. Just smile.

All in all
This is a difficult piece to use, for sure. But when it comes together, there is nothing else I would ever want to go on to the field with! Have a FANTASTIC day :)
by dylan c. on 07/07/2015
"Very good product, I've had this weapon system for 7 months now I still have stock internals though I run a 10.8v. I've probably had over 12 hours of trigger time, My favorite weapon ever.

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This is a pre-order item.

Pre-order estimated arrival: February 2023

By adding a pre-order item to your shopping cart, you will guarantee yourself to have the item reserved before they are offered as an in-stock item. Often, you will also save on shipping while not risking a rate item being sold out before you have a chance to buy it. Being the largest Airsoft distributor in the America continent, is the gateway for many exciting items entering the Airsoft world. All pre-order items are tagged with our best estimate on arrival times factoring in manufacture delay, us custom examinations and other factorys to the best of our ability. The goods on pre-order generally arrive before they are past due or on-time 99% of the time. All pre-order items are processed subject to item availability on a first-come, first serve basis. All orders and payments are processed at the time of payment. Buyer reserve the rights to a full refund on any pending pre-order items at any time.

This item is currently Sold Out. Most out of stock items are restocked within 1-3 weeks. Some items may take longer. Please add this item to your wishlist to keep posted on its availability.

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