Since I got my AK I've been shopping here and there for various parts and I've stumbled across quite a few FA parts including auto sears, most parts being very inexpensive ($5 for the auto sear vs $8000 for an AR auto sear.) And they're all reputable dealers... so what gives? What kind of loopholes do you have to jump through to build a FA gun? Is it legal to own auto parts if they're not installed in your gun? (i.e. stored away in case of a SHTF scenario where full auto fire might be desirable) Anywhere I can read up on this stuff?