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Matrix M4 GBB AR-15 Gas Blowback Airsoft Rifle w/ Reinforced WA System by S&T (Model: M4 CQB-R)

ID: 75715 (GR-MTX-ST-GBB-06-BK)
5.0 stars, based on 2 reviews
Matrix M4 GBB AR-15 Gas Blowback Airsoft Rifle w/ Reinforced WA System by S&T (Model: M4 CQB-R)
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Optics not included

$199.00 $149.00

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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 LE type stock
  • Flat top receiver is ideal for mounting optics or other 20mm accessories
  • 20mm railed CQB-R style handguard allows for easy integration of accessories
Length: 680mm - 760mm, Adjustable
Weight: 3300g
Inner Barrel: ~280mm
Magazine Capacity: 50rds Uses Matrix, G&P, Western Arms, King Arms, Inokatsu, and compatible magazines.
Muzzle Velocity: 340~380 FPS (Measured with 0.20g BBs and Green Gas)
Thread Direction: 14mm Negative
Gas Type: Green Gas
Fire Modes: Semi/Full-Auto, Safety
Package Includes: Gun, Magazine
Hopup: Yes, Adjustable

Manufacturer: Matrix. (USA) S&T (Asia)

FPS Range: 340-380

California residents click here for Proposition 65 warning

2 Customer Reviews

(Write a review)

by Adam O. on 05/19/2018
"Just got my rifle and I got to say the thing is amazing, this is my first gbbr in airsoft and I couldn't pass up this deal, a gas blowback at aeg price. It is very accurate, I got the m16a1 (longer hand guard), and I ended up putting a 12" free float rail on it, and it is amazing looking. Besides looks and feels the gun works great, the only thing I would have to warn people about is the amount of care you have to put into the gun, if you are a first time owner of a gbbr then do some homework about them and how to properly clean and maintain them. THEY REQUIRE A LOT OF CLEANING!!! That is the only con I could find about this gun besides the price for mags, and I would highly advise you use some WE black gas in it, and clean it after every use to make it last a long time. I hope this review can help someone in the future.
by Chongpheng V. on 04/13/2018
"I ordered this gun last week Friday and I received it on Wednesday because of free ups 3 day shipping (coupon code) if my order was over $150, which it was because I ordered a Angel Custom Hive airsoft suppressor and a Valken Tactical Red dot sight along with the gun. At first I thought I was gonna get a off-brand gbb(gas blow back) m4 but this was actually from s&t and it comes with good packaging in Styrofoam. The gun shoots accurate from 40 ft plus, and the recoil is amazing. Even though this gun has a polymer receiver and hand guard it is still awesome don't let the polymer get in the way of buying it since its only $130. The gun is sturdy and has a little wobble coming from the hand guard and stock but that doesn't bother me. If you're wondering about taking off the flash hider to put on a suppressor it has a small 1.5mm hex screw and you will need to unscrew it and also heat the tip to get glue off. I have not tried it yet since I do not have a 1.5mm hex screw but I read online most airsoft guns have a 1.5mm hex screw. I think there is a hop up adjustment but I have not touched it yet and when opening the gun by pushing out the screws, the screws were really stiff so just a heads up. Also, 1 thing about the mag every time you are gonna put gas into the mag you need to push down the roller or something like that on the mag. I thought my mag was broken but I looked it up and it said to push down the roller which is like a little lever on the top right of the mag. My model was the m4a1 and it did not come with a vertical grip like it said but no need for a vertical grip since there is no ris on this model except for the cqb model.

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