May come down on price with volume. Penetrates 3/8" of steel at 400 meters. Selling some very hot and extremely rare AP 5.56. Never officially sold to civilians. Sold for $3, and I haven't seen them for sale in Alaska.
-If you buy 50 rounds or more, price is $19.98 per 10rd clip (aka $100). 
-if you buy less than 50rds, price is $21.98 per 10 round clip.