Hi-Cap AEG Magazine for airsoft M 16s and M-4

Click the Image To Look Inside:

Its a magazine for your airsoft M-16s and M-4 carbines. It holds roughly 300 rounds.

at the bottom of the mag is a winding wheel, which loads the bbs in the shaft(approximately 25 shots per wind)
Once in a while I get jams in the feeding system. you can tell when your gun doesn't shoot any bbs and the resistance on the wind wheel is different.

In that case, you empty out all the bbs in the reservoir and stick a chopstick down there. poke around until you hear the wheel spin and it should be working again . I highly recommend buying a couple of these. I eat up ammo like crazy and 300 rounds doesn't last me a match.