Mine is a Tom Bostic (Tommybuilt) full-on UMP-45 conversion with the correct Receiver laser markings, etc. The back end of a genuine UMP Receiver was "welded" onto a USC-45 Receiver front end and then fully refinished. The correct "Hook" was formed on the Ejection Port Fence to secure the folded Buttstock. And so on and so forth. Mine is even registered by the CFC as a restricted semi-auto UMP-45, vice a USC....
![]()
This is an amazing piece! Great job. Very nice dude. Thank you for all the info. If I can ask some questions.
(You could also have the conversion parts sent from the states via IRG.)<-- What is this option IRG? What is IRG? Does this work as far as buying the USC .45 and converting it with this kit? Approximately what would this conversion package cost vis the states? Thanks and again that's a really nice piece.



























