I depends on what privisions the next ossible Assault Weapons Ban will have. If you are like many and planning on an AWB, the your best bet will definately be magazines. High Cap magazines were at a premium last time. But if i were you, i would just purchase a lower parts ''survival'' kit which has several springs, detents, and pins. they sell the packages at a lot of the onlne retailers. But definately get some mags... i would suggest checking out the Group Buy Cold is running!