mag newbie question

[dirtyrug33]

alright. i got a new mag. and i will pull the trigger and it sounds like a full auto( im told its just bounce)but it only shoots i ball. i can do this for about 2-3 times then on the fourth or fith time it sounds like all my air is leaking out. i was just wondering if there is something wrong with it or if im doing something wrong. holla back

[ghideon]

How new is new? Is it used?

Check the on/pin. Make sure the on/off assembly is oiled.