There are 4 Viper Aircraft VIPERJET MK II aircraft on the U.S. registry that TailWiki has a page for. Every one is built from the public FAA record — year, serial, engine, home base, and registration history — and owners and pilots add photos, trips, and stories on top. The ones listed here were built between 2008 and 2011.
N999VJ
2011 Skinner Russell W VIPERJET MK II
Lucedale, MS
N24VJ
2010 Hamm Dennis Dba Pacific Sunset VIPERJET MKII
Oswego, NY
N899VJ
2008 Viper Aircraft Corp VIPERJET MK II
Wilmington, DE
N886AK
David G Thomas/Thomas Aerospac VIPERJET MK II
Chandler, AZ