Congrats.
A note though...
Doesnt the NFA regulate guns that can be fired while still in a wallet holster? Isn't that an AOW or something?
I think the regulation has to do with guns that can be fired without people being able to tell that you have a gun in your hand. I think if it exposes enough where people can tell it's a gun it's legal.
http://www.gunnersecurity.com/holster-Kel_Tek_wallet-1.htm There's a link on this page to an ATF Document about it.