ACM / Battleaxe Steel Magazine for Tokyo Marui Next Gen Series M4 / M16 Airsoft AEG (Type: 80rd Mid-Cap)

"I recently picked these up for my NGRS 416 and they are awesome! They fit good (please read below, dremel work needed, at least for me), and they feed great. They also use activate the bolt stop and gun stop feature when the magazine is empty.

Although these are amazing, I will say that for me I had to spend two hours or so dremeling one section of the magazine due to it being extremely tight. This varied from mag to mag though, but one took me like 30 minutes because it was so much thicker than the others. Because of this, I will knock it down one rating, only for this. THIS MAY NOT APPLY TO OTHERS, BECAUSE MAGWELLS VARY FROM WEAPON SYSTEM TO WEAPON SYSTEM.

9/10 STARS

"My buddy has a few of these mags for his TM 416 and they work perfectly. I've used the 416 in a few skirmishes and they have never seamed to fail even slightly, they where also brand new so I don't know how they are feeding now but he is still using the gun and hasn't complained about mag feeding. Also the other guy giving the mags a bad review because his speed loader doesn't work on a hicap magazine is totally unfair.

"First of all, people need to read that these magazines are only for TM Next Gen guns, meaning the ones that have recoil shock. It's not your standard TM style M4 magazine. Anyway, for not being actual TM brand magazines, these work excellently. I run 6 of them in my TM HK416, and they feed perfect with hardly any misfeeding and 5 out of 6 of them always engage the bolt lock after the mags run out. Great buy.

"So initially I heard some okay things about these magazines but honestly when I received them I was blown away. They feel, and fit just as awesome as the tokyo marui magazine I received with my recoil. They also have fed perfectly so far. My honest opinion these magazines are a great buy. I will update this post in a couple of weeks when I field these for the first time and not just backyard plinking.

"Ordered two separate batches. Both sets had different things about them. So the first set I got all fit fine in the magwell, the second batch I got had a much harder time fitting in to the point of having to slap them in, and needing two hands to pull them out. What it is is the plastic internal part of the mag is slightly thicker than the first batch I got, pushing the mag shell outward. I know this because when I tried swapping the internals of the mags, the older mag internal I had worked with the shells of the new mags, but the newer internal part of the mag had a harder time fitting in the shell. Also, I needed two different hex keys to get the screws undone, despite them being the same mags.

TL;DR
Mag batches will vary in slight dimensions,m causing different fitment issues in guns.
Springs suck compared to TM Midcaps, I just took some springs from regular MAG midcaps and now they feed fine, because these mag springs are twisted compared making feeding difficult for them.
If you stick with the stock spring, the bolt catch function may fail due to the weak springs.
Cheaper than the TM ones, but you'll need to swap the springs out to get desired results of a TM one.
Good Steel, if it actually is steel, I threw some of these at a tree a bunch of times because the stock spring kept getting jammed, after hitting the tree a bunch of times, still had good form to them.
Also if youre wondering about the 30/80 round function, its there, its just that you'll need to open the actual shell and flip over the switch to activate, since the guys who made this put the switch in the wrong way.

3/5 for working, lost 2 because of the QC issues along with the crap spring, and wrong orientation of the 30rd function switch.

"i ordered 3 of these because of the price. you get what you pay for. all 3 mags did not fit in the magwell of my TM next gen ebb SOCOM. they were way to tight; to the point where you needed to hold the gun down and really yank on them. will need modifications to fit properly. buyers beware.