KAK Industry 25 Round Linked 7.62 Nato DDI roundsFully Functional DDI RoundsContract Produced- Dummy, Drill, Inert DDI RoundDDI Proving Round in 7.62 NATO, these are electro nickel plated for one of our contractsMachined from a single piece of high quality aluminum in houseThe plating on these may be inconsistent in larger batchesNSN (Nato Stock Number)1305-01-675-2866P/N13068237Links produced by International OrdinanceM-13 7.62mm LinkMIL-L-45403EP/N 500912NSN 1305-42-000-0938