how does it say its a 15 round cap, when the mag is only 5? some one elaborate on this for me please, thanks, also i am about to but one of the old models, it comes with scope and mount and extra clip for 180 brought to my door, is this a good deal? i wanted one from marstar but they sold like hot cakes, what should i look for so that i dont get a lemon , some one please help me with a few tips about this gun,and what to look for. thanks