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Matrix M4 GBB AR-15 Gas Blowback Airsoft Rifle w/ Reinforced WA System (Model: MLOK 13")

ID: 81097 (GR-MTX-ST-GBB-10-ABK)
Matrix M4 GBB AR-15 Gas Blowback Airsoft Rifle w/ Reinforced WA System (Model: MLOK 13)
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Optics not included
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MatrixGolden Eagle


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  • Utilizes the Western Arms gas blowback system ensuring reliable performance with a plethora of aftermarket parts and accessories
  • Injection molded polymer receiver provides rugged durability without the additional weight of a metal receiver
  • Improved gas efficiency, reliable feeding and firing in full auto
  • Adjustable SOPMOD type stock
  • Flat top receiver is ideal for mounting optics or other 20mm accessories
  • 20mm railed MLOK compatible handguard with MLOK mounting points on the 3 O'Clock, 6 O'Clock, and 9 O'Clock positions

Manufacturer: Matrix

FPS Range: 340-380


Length: 765mm-855mm, Adjustable
Weight: 3300g
Inner Barrel: ~363mm
Magazine Capacity: 50rds Uses Matrix, G&P, Western Arms, King Arms, Inokatsu, and compatible magazines.
Thread Direction: 14mm Negative
Gas Type: Green Gas
Fire Modes: Semi/Full-Auto, Safety
Package Includes: Gun, Magazine
Hopup: Yes, Adjustable

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 Golden Eagle

Golden Eagle International (HK) Limited was founded in 2007, with strong experience in developing and manufacturing high-quality airsoft guns, airsoft parts and related survival game products under the brand GE Airsoft (Golden Eagle Airsoft). As a professional supplier, our goal is to ensure customer satisfaction by providing high-quality products and excellent after-sales service.

49 Customer Reviews

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by Andrew S. on 06/06/2024
"I got this for my dad for fathers day cuz its like the one that he used when he was in the army everything is good but the only thing that's bad is it has matrix on the lower receiver
by Everett C. on 05/29/2024
"I can’t lie, after getting this rifle I have been very impressed. I got the M4A1 model and the internals shoot very good from what I can tell, and the first couple of fills of a mag are able to get you atleast 40 shots at full auto.

If you noticed I said first couple, it’s because these mags are not the best. They dont look bad, but after the first 60 or so shots it started leaking a bit and then started to leak more and more. These feedlips also suck, and it hurts to try to push a BB in since they don’t have speed loaders included.

Back to the gun: It shoots very well from what I can see, and has decent range as well. I don’t know if that’s the case for all, but mine does. A few problems I have noticed are small ones though, for example, if you push the magazine release in to far, it will get stuck on the lower, and the takedown pin has popped out a couple of times. Other than that, this rifle is decent and exceptionally good for the price.
by Darin B. on 11/02/2023
"I’m here reviewing this because this is beyond my expectations, I’ve seen i couple a reviews maybe not on this one.A couple of ppl had their mags leaking so if this is your first time this is what I think you should do. 1. Makes sure the disk is pressed down to reset the gas release valve and 2. Straight out of the box lube up the magazine with silicone spray and the internals of the rifle 3. It could just be my opinion but don’t over fill your mag, too much pressure is just not good overall if you want this to last long and same thing goes for dry fire and rapid fire. 5 seconds hold and you are good. It is a 50 round mag but to keep it real I only hold in 20 or 30.

Now about the rifle is absolutely amazing the blowback is good the full auto is not bad but it is for sure fun, throws sum optics and a peq 15 and it’ll look killer, their is a s&t m4 nozzle replacement incase you crack the other one but just be careful , sure you won’t need it but it’s good to be laying

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