Matrix / S&T Sportsline Metal-Bodied M4 RIS Airsoft AEG Rifle w/ G3 Micro-Switch Gearbox (Model: M4K PDW)

"Great gun!

Pros:
Full metal body
American flag on receiver
Great fire rate with 11.1 lipo
Lipo ready gearbox

Cons:
Plastic hop up unit
stock rattles
iron sights are polymer and are wierd

"I got this gun as an impulse buy and I love it, but I didn't get the one with the cool bible quote on the side like the one in the picture though.

Pros
Very heavy and premium feeling
accurate with a good bb grouping
comfortable to use

Neutral
VERY loud for an AEG (because of its short barrel length I think) so I ended up putting a sound amplifier on it and now it hurts your ears when you shoot it indoors, which I like as it's very intimidating.

Cons
The motor is weak; I'd definitely get a high-torque motor for it
The PEQ box is very cheap plastic and wobbles

I haven't upgraded it yet and that's where everyone says they start having problems, but so far the gun is amazing out of the box (other than a fairly weak motor).

"Had mine for over two months now. This rifle is by far my favorite for CQB due to it's compact size and rate of fire. I use a 7.4V 1500mah Matrix lipoly battery. Imagine shooting a pistol with a 3000 round drum magazine, this is it.

"Wow, what an amazing AEG for the price! Definitely pick up the Matrix PEQ2 Battery for it!

Stats with xCortech:
320 FPS w/ .25's
15 RPS

Pros:
Compact
Full Metal
Good FPS for CQB
Awesome range for such a short barrel

Cons:
Sorry, I can't think of any!

"I got this gun along with a matrix PEQ battery (LiPoly), a charger, a lipoly charging bag, and a forgrip. When I opened the box I was surprised at the quality for the price. The entire thing almost is full metal but still light enough for easy use. The battery came a bit charged so i tested it out. its firing pretty decent however fire rate with a 7.4v lipo is slightly disappointing. add on the severe distrust of lipo's i have, makes me want to buy the 9.6v PEQ-2 battery for $52. With the Matrix 9.6 PEQ-2 I'm sure this gun will be a keeper. even without the safer (in my opinion) Matrix PEQ-2 battery, It still is impressive and fun.

Pros:
Full metal
Decent fps
Sweet trades
Nice magazine
Decent iron sights

Cons:
Mostly uses lipos (easier to find)
Using low powered LiPo results in low fire rate
Small chance of LiPo blowing up if not properly cared for

All in all this is a great gun and should seriously be considered. However if you are going to get it, save yourself the money and get the Matrix PEQ-2 battery. It will save you money, and give better performance, along with the added bonus of not being a lipo.

"The replica is Good quality metal full only change the hop up

"Overall review would be good.
Pros
Heavy
Hi-cap
Durable
High rate of fire

Cons
safety doesn't work (on mine, maybe i got a lemon)
Can't find hop up adjustments

Would i recommend, Probably

"gun worked fine out of the box, I tried upgrading it and all hell broke lose at that point. I finally have now sent it to a custom mechanic I know who is installing a dsg into it and a 187mm barrel and I will be attaching a mosfet, deans, and silencer externally, also bought the m4 holster for this, using another gun as my main and this will be attached to my combat belt for secondary, mostly cqb since it will be 55 rps...yeahhh. Out of box though, nothing fancy. 370-385fps at 15 rps

"It's a pretty good gun when it decides to be.

Pros:
-Small
-Easy to use
-Durable metal
-Uses standard M4 mags making it squad friendly and able to put in drums.
-Pistol style, no stock (Pro for me but some might see it as a con)
-Enough rail to add accessories like foregrips or grenade launchers

Con:
-Out of box the wires connecting to the motor are too short, regular firing can cause the wires to come loose making it useless. Had to lengthen the wires.
-Not easy to disassemble, most M4s can be taken apart by removing a pin. Most airsoft M4s have that pin and possibly extra screws in the handle.
-PEQ box battery. It's annoying to find proper sized batteries, pretty much have to use LiPOs, especially if you want 9.6 or better. That and in order to actually remove the battery and put a new one in you have to to remove screws, so unless you carry tools it's not field friendly. Lastly, the rail grip is made of plastic and is awkward to seat correctly.

"these gun was ok but I don't know if I just got a bad model or something but the BBs sometimes just roll out instead of being shot, and they just don't go that far even for how short the barrel is but the rps is good!