The most obvious thing is the Serial Number. It will appear on both the slide and frame. It is XX826 on the left image, 86912 on the right image. More about Serial Numbers is below. The next thing you might notice is the US importer, HK in Chantilly, VA. US importers are required to stamp or engrave their name on any guns. The Heckler & Koch UMP (Universale Maschinenpistole, German for 'Universal Submachine Gun') is a submachine gun developed and manufactured by Heckler & Koch. Will trade for: open to offers, I have no plans to take a deal at a loss so don't bother with equal to or lower offers to buy. Download Cfr Para Rct3. Download Nsf Iso Registration Database Hacking De Aplicaciones Web Sql Injection Pdf Download more. on this page. Smith and Wesson M&P 15 Sport (with a 1.