I got this item so I wouldn't have to change mags during my games and wow this can hold alot of rounds to last the day. The pellets swish around inside but I fixed it by muffling the inside with padding and electical tape even though the swishing didnt get in the gameplay before I added the padding because all box mags and motor mags do that and it doesn't make as much noise as the branches and leaves your stepping on in the woods. This works great and its worth getting if you need it as a spare after running out of magazines because you can carry all your ammo in any game. You can use this magazine on CA & TM M4 and M16 replicas. 5 stars

This drum magazine is awesome. It works great. Easy to use. It was a little hard fitting on my gun but that no biggy. If you hate running out of ammo/ clips in the field you should definitely get this. The bb's Rattles a bit inside, but again no biggy. 5 stars

this mag is pretty good i geuss but only because it holds so much it takes forever to wind though and is kinda awkward for a left handed shooter also it takes a long time to just load and it rattles alot 3 stars

this is a good mag if you have a ROF of less than 500. if you have a high ROF it will not feed very well, and your gears will grind. plus if you have a auto winder like me that does not work on it, if you do want to make it work you need to sand down the outer plastic so that it will work. so if you want good ammo capacity for a good price and you have a lower class gun, this if perfect! 3 stars

I got this a while back, and it works awesome. But I do warn you that this has one of the best feed systems in an airsoft mag I've ever seen. So if your gun has an RPM of less than 850, it will blow your fuse (on an AEG). But overall, if you are careful in your automatic use, you will crush everyone as a support gunner. 4 stars