Anybody in to the stamps?
http://en.wikipedia.org/wiki/National_Firearms_Act
Basically, anything you have to register under the NFA to own. SBRs, suppressors, destructive devices.
Right now I have 5 with stamps and 3 setting at work (I work at my dealer) that I haven't sent the paperwork in for yet. In order of acquisition, all with in the last 3 years.
1. Colt 6933 11.5 SBR
2. SS sparrow .22lr Silencer
3. Sten MKII Submachine Gun
4. SCRC MK25 Sten MKII Silencer
5. SWD m11/9 "Lage max11" Submachine Gun
6. Silencerco Saker 5.56 Silencer
7. Colt M16 Machine gun
8. Obrez Mosin Nagant SBR