For anyone interested, I just ordered 6 30rd AR mags from Sig Sauer for $21.50 each. They're the IMI Defense polymer mags (reviews:
http://www.cheaperthandirt.com/produ...e=1000#Reviews ). I had to call Sig Sauer (603-418-8102) to order them because their website kept erroring out.
Does anyone have experience with these? I was also thinking of trying these -
http://www.rainierarms.com/?page=sho...roduct_id=1195 .