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

"Just received this rifle and let me say that for the price this thing is amazing. This rifle is more aimed for the beginner Gbbr air softer that is scared to drop their entire life on a gbbr rifle. This thing is nice, the lower receiver feels like metal, its actually plastic, i thought it would be annoying since it was not metal be to be honest i do not feel it when im shouldering this rifle. The kick is outstanding, especially since this is a half metal and polymer construction rifle. Only sad part is that i had to drop the same price of the rifle on KA gbbr magazines :p

Pros
Lightweight (cons for some idk why)
Hard Kicking
Solid Construction
Easy take down (just like Real Steel)
internals should not pose a problem after break in (take care of it as usual though)

Cons
Mag filling valve is kind of shotty when filling it up
Magwell is super tight (something i hope wears down)
Just get it, Its worth it, wont regret.

"I bought the keymod 7" version.

This is my first GBBR, and it has exceeded my expectations especially for the price.

This is a great, affordable way to use this as a training platform and milsim. Polymer build makes it light. I feel like if I'm too rough with it, it might bend and break. So I take some care when handling it.

Magazines are cheap. Whenever I try to fill these with propane using an adapter, they leak from the side of the valve. I tried three different propane adapters including the Matrix polymer one from here, but they all seem to leak. Tried filling my GBB pistols and they don't leak like these mags.

Otherwise, they have pretty decent gas efficiency when shooting. I can probably empty 1 and half mags before they start sputtering. I usually only fill about 40 rounds as the spring starts to get tough around that count. Full auto has great ROF (can't tell you a number), but it's satisfying enough.

As for loading the mags, you need a speed loader with the GBB adapter (that little clip of plastic that comes with your standard pistol magazine sized loaders). I've recently learned this and luckily had one stashed away. Otherwise, you will need to load each BB one by one by hand. I tried using the old reliable speed loader sold here but that doesn't work. I wish they had that in the "You may need this" section of the listing.

Magazine stock screw I noticed would fall out sometimes after full auto. Keep that in mind when playing on the field. I would recommend either securing it somehow or buying a better stock that can handle the recoil. Maybe it's just mine, but something to note.

If you're looking to use a sling with these, buy QD sling mounts. There are no options to use traditional slings out of the box. I personally use a QD keymod sling mount for the front and just a zip tie around the stock hole and it works fine.

Overall, for the price, this is a solid first GBBR and should give you an idea whether or not you want to invest in more higher end GBBRs or not. I personally will continue to purse GBBRs as I like to use them more for training then skirmishes.

"AMAZING FIREARM!!!!

This thing is practically indestructable!

I own a shooting simulator, we have this firearm tethered and use it at a minimum 1,000 rounds DAILY.

The only issue we have had after two months of use, was the charging handle breaking, and the hammer spring being too weak and breaking. Easy to fix issues. Otherwise this thing is unstopable!

I ended up buying four more and running them on all three lanes.

"Bought the 9 inch Keymod version. It shoots good and is accurate up to 170 ft and hit a half man target over 50 yards. I’m going to keep it brief.

Pros
Accurate
Hard kicking
WA parts compatible
Good gas efficiency
Plastic receivers appear to be a strong poly not like old abs plastic guns.

Cons
Mag price
Sights are hooky

People make comment of weird springy sound, which is just the buffer spring making noise - normal and is audible in real AR type riffles. Plastic receivers can be more durable than zinc alloy metal receivers. Buy with confidence - I just spent an additional 160 dollars on steel internal parts, and a new steel bolt and it is more solid than any other GBB out of the box for less money than a GHK

"I purchased This M4/16 last week and arrived in great package and box up well,Keep in my this is my 1st time buying an Air Soft GBB Rifle. I finally got a chance to test fire it and was able to hit 2" Target from 100 feet 4 out of six shots but I change the rear and front sights to my SiG MPX metal sights since the original sights were not to my like and rear one was cheap plastic and felt it would break if I flip from far shot to near shot. It outer casing seem like cheap plastic but once you hold it and get used to it is all good quality, only con is the metal magazine it's not the easiest to load and only holds 50 BB's, magazines are $45 a piece compare toy sons AEG Rifle Magazines are way cheaper. So far this compares to my real M4 bit with less kicked.

"I just purchased a mystery box and recived this gun and upon receiving it and going over it and test firing it I'm very pleased with my purchase I have plenty of other weapons I've purchased through evike and have been looking for something I can do a sniper gas mood to and this us perfect a++ as always
I also have the 150 dollar model of this I have done a marksman build with so once again a++ guys

"The CQB-R variant is my first ever GBBR, and I love it. It’s super cheap and gets the job done. It fires way over 350 FPS (my cqb arena’s limit) at around 380-390 for the first 10 or so shoes after a fresh refill of green gas, but dips down to 330 after that. However the upper, lower, pistol grip, and stock are all plastic, but the buffer tube and RIS are metal.

"Let me preface this review, I am new to airsoft and gbbr so keep this in mind. I have had the 13” Keymod version for about 2-3 months have used this both for indoor and outdoor fields. It has only been used for skirmishes so far but I can not complain. This rifle is solid! The look of the gun is superb, I feel the construction is up to par (my airsoft guns and real steel are tools in my eyes and are used/abused as such, I don’t baby them), and it’s accurate to nearly 40 yards. I have dropped and thrown this thing and there’s nothing more than a scratch on it (keep in mind this thing also came scratched up). The only complaint I have is the rear bus, you have to have the flap folded up to fold the sight down, and the front sight is a little loose and has some play in it now. Other than that I strongly recommend this rifle to anyone looking to get into gbbr!

"Ive had a couple weeks to use this gbb and so far its been great. For the pricepoint its an excellent rifle havent had any problems yet and im down in south louisiana so thats saying alot. I personally wouldnt recommend this to someone just starting out in airsoft since green gas can get expensive quickly and the mags are hit and miss on quality i got 3 of them and two wouldnt hold the gas in for long but a little teflon tape and all is well. You can use propane but be wary you will get the propane smell every trigger pull. Plan on upgrading to hpa soon so ill update my review after that

"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.

"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

"Better than I was expecting for a gun that was so cheap!!!

"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.