This is the same kit issued to the Marine's and the Army for their M-4's. It come with the RAS system , 4 full rail covers 2 9 rail covers 1 6 rail cover and 2 3 rail covers. Also has the vertical grip. It is new and was never issued but there is some handling marks on the lower portion of the RAS. This kit doesn't free float the barrel it just replace's your hand guards. Would like $350 shipped.