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Matrix M4 GBB AR-15 Gas Blowback Airsoft Rifle w/ Reinforced WA System by S&T (Model: M16A4)

ID: 75716 (GR-MTX-ST-GBB-07-BK)
5.0 stars, based on 6 reviews
Matrix M4 GBB AR-15 Gas Blowback Airsoft Rifle w/ Reinforced WA System by S&T (Model: M16A4)
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Optics not included

$195.00 $139.00

CanadaExport Compliant
This gun has a muzzle velocity rating (FPS) between 366 and 500, and is compliant for export to Canada.

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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
  • Fixed M16 typle stock
  • Flat top receiver is ideal for mounting optics or other 20mm accessories
  • 20" outer barrel with full size A4 style handguard
Length: 1000mm
Weight: 3300g
Inner Barrel: ~405mm
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: 380-400

California residents click here for Proposition 65 warning

6 Customer Reviews

(Write a review)

by Jason S. on 07/19/2018
"We just received the M16 variant of this gun a couple days ago. All we have been able to do so far is put the gun through its paces and sight it in. I was initially worried about the polymer shell. It is definitely not cheap polymer. I expect a long service life regardless of the fact it isn't full metal. The internals however are full metal. The magazine feels robust and has worked flawlessly so far. I can refill the magazine 3 times before I notice any drop off in performance. It is wicked accurate. We have a range setup in the back yard of 100ft. This gun easily clears that with next to no hop. I expect with hop adjustments we should be able to hit 150ft reliably. The magazines provided with this gun are also fairly priced. You should be able to purchase the gun and 5 mags for less than $400. This looks to be a great entry into mil sim. I'll make sure to update as we put the gun into field service.
by Trevor S. on 07/12/2018
"Pros shot far and accurate very realistic good materials
Cons rail system is not good I put a 10in keymod on it and it's perfect
Overall I really like this gun and I like matrix products
by Brian S. on 06/20/2018
"Great gun for the price! You can throw in a 1” plastic spacer to speed up the fire rate. I used it in one war before selling it though, the gas mags just drove me crazy they wouldnt fill up and would randomly be empty. Not saying its the guns fault, i probably didnt do something right but that pushed me away from gbb. Great accuracy though out to maybe 150ft before curving.

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