UFC Matrix 110rd Mid-Cap Magazine for H&K UMP Series Airsoft AEG Rifle (Package: Single Magazine)

"Bought a couple of these and they worked amazingly. For the price that they are I would grab some. The only issue is that the last few bb’s left in he mag won’t feed into the gun itself

"Works as intended, first day fielding them had 0 feeding issues.

"mag was great quality for $10, but it does NOT work or fit in a Double Eagle

"This mag fit better than the mag I got with my gun with great feed, just because they're cheap doesn't mean they aren't good quality.

"Fit great, feed great. Kept up with my high ROF.

"Feed great, click in the Umarex UMP with no wobble. Better plastic than then Umarex is made out of.

"They're great! Very reliable once you break the spring in for first or second time around. It definitely has a lot of tension in those springs, so high fire-rate weapons should do just fine. Polymer construction. Fits well into pouches. Fits fairly snug into magazine well. Worth every penny.

"This mag fits Perfectly, doesn't wobble, and feeds with zero issues. This is a midcap that's worth buying, as opposed to the more expensive Umarex ones.

Get the 5-pack for a slightly better deal.

"About 2 out of 5 fit, going to have to sand them down, it is really hard for them to be put in, and feel kind of cheap, but i think they will still hold up

"Pros: They feed well, cheap compared to the overpriced 20$ umarex midcaps
Cons: Feel cheap to me, but have held up. One of the 2 i bought has a problem where you have to manually push the bb release back, but isnt a big deal

"They fit, they feed, and they load. About as much as can be asked for of a $10 mag.
However, they will try to split apart while loading and are not eager to hold 110 rounds. I can fit about 90-100 regularly, but the mag starts structurally fighting me at about 70-80.

"Awful cheap crap. They will start splitting in half once you've loaded 40 rounds or more. I recommend using tape to hold this piece of garbage together so it doesn't destroy itself just from normal use.