Great magazines, bought two together with an automatic Uzi and it was a great combo. The mags fit ***almost*** perfectly on it (more on this further down).

I just don't understand why it's labeled 12 when in fact it can hold more darts than that; I'm using them with 15 and it's working perfectly. I believe there's room for even 17 maybe, but then the spring might be too compressed and jams it. Still the 12 recommendation seems way too low in my opinion.

Of note is that the mag does not have an specific direction, you can load it into the gun either way given it is symmetrical and doesn't have any blocker on either side. I like this because you don't need to look which way to feed the darts, just put them all faced the same direction and insert the mag into the gun. Quick and easy.

About the fitting: the mag does fit the Uzi, but you have to slap it up firmly on the gun, almost punching it up, otherwise the gun's latch wont lock it in place. The Uzi still holds it nicely even if not locked, but there's the risk of it falling down from the gun.

The problem is the latch hole, which literally is a tenth milliliter lower than the original Uzi's mag; that's why you can lock it in place if applied more force upon inserting the mag. To solve this, I sanded the holes on both to increase the upper edge of the hole, now the gun's latch locks them like the original ones, just inserting them with a regular stroke.

A great toy, really good quality. The thing is quite powerful too, the four motors fires the dart awesomely fast!

The accessories that come together although a nice touch are kind of useless: the gun is nowhere accurate enough for the sights, you can't simply aim with them. The strap might help if you plan to run in a open terrain (reducing the risks of having it fall from you hand), but it is a hassle if you plan to switch guns quickly/frequently.

The ironic downside is that with so strong motors ordinary darts lose their precision (regular darts are not heavy enough). Gotta get heavier, better quality darts if you want your shots to have some precision.