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

"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.