1000 rounds of Federal/Lake City XM855BK150 5.56 new SS109 Green Tipped new steel core ammunition, 2016 Produciton. This is packaged 150 rounds per box, and 6 boxes are included, for a total of 1050 rounds. Each round is brass cased, non-corrosive, boxer primed, and has a 62 grain copper jacketed FMJ steel core bullet. It's military designation is