Matrix 2000rd LMG Auto Winding Hi-Cap Magazine for M4/M16 Series Airsoft AEG Rifles (Package: Box Mag + Dummy Bullets)

"Great box mag but I only have 2 gripes... 1) it didn't fit my zalken m4 until I cut away part of the mag well, had to cut 1/2" off the front face back to the v cut. And 2) when you get low on bbs (probably around 200ct remaining) it has trouble auto hopping the bbs. Other than that this mag is amazing

"Honestly for the price this actually worked quite nicely. I use a warhead/gate build and it runs every time and feeds well

"FYI it takes x4 AAA batteries not AA as advertised it fits perfectly in my g&g cm16 feeds perfect everything about this mag is great just the batteries issue

"This a great mag. After 10k rounds no jams or failures. I've used it on A&K NS15 M4 stubby and Lancer Tactical LT-33 Nightwing. It fits nicely in both guns. I went full auto on both and I did have to switch to the constant feed setting will on the Lancer because of a few misfires, but it only happened twice and I believe that was because of the angle I was at while the ammo was real low. It's awesome not to reload so much and it helps to set the gun down in the upright position so as to not bump my optics and scratch the sides. Other than the bb's rattle (which isn't bad) it has a near silent motor/winding noise operation. The 4 aaa batteries have lasted so far more than 10k rounds which I feel is astounding. And its not that bulky for 2000 rounds. Great quality, great value, great price. I'm buying another one.

"i would recommend this over the krytec box mag. it has a way better feeding mechanism, i haven't had any jams sofar, it has auto and sound control functions, and its 40$ compared to the hundred that the krytec box costs.

"I got one of these with a gun it didn`t feed properly I think it was just that one item but I'm not sure I gave it to some buddies and it did not work for them either again i think it was just that one but I'm not sure the dummy bullets only fit in certain guns..

"Its a great box mag, however, this takes triple A batteries, not double A. I got one with dummy rounds and they look really cool, however, this doesn't come with instructions so it was difficult to find out where the dummy rounds go. But as a 40$ electric box mag goes, this is a good option.

"Howdy! I purchased this magazine about 6 months ago and when I tried to use it on my m4, the bb's never made it to the motor of the gun. The mag's feeding works fantastic, but I would recommend other m4 drum magazines if you have a lower-end m4 like mine. Maybe this is just an isolated incident, but I have not been able to get the mag to work with my m4. Just beware!

"did not fit into my M4. i use a valken ASL mod M and the part of the box mag that is like a normal m4 mag that actually feeds into the gun was too short to fit.