Not to be "that guy", but pre-ban .223/5.56 can be expensive and hard to find.
I love my .223 but if I had to buy pre-ban mags I would into a 7.62 or 5.45.
understandable, i got the drop on some galil 30rds for 30$, not cheap but better than nothin. Good Ol' NY.
.223 i got a month ago for 380$, so far it has an ATI fiberforce stock from ebay, Tromix trigger group with crooks pin from CSS.
Future plans rounded bullet guide, couple 30rd preban ak mags, reddot scope w/ side mount, and galil foreend.