Just be sure you UNDERSTAND what the FFL 03 is for. It is only so you can collect old rifles and pistols for YOUR PRIVATE COLLECTION.
You cannot buy a new (or not on the list) gun with it, and you cannot start going to gunshows and sell a pile of old guns you just picked up from sog or century for profit.
(there is even talk among some distributers that they may stop recognizing and selling to the 03 holders because of the abuses)
The
Batf is changing the rules right now, and soon will be able to dump REALLY BIG (starting at $5,000) fines on people that abuse what this license is for.
Don't be scared off by this, just make sure you understand everything going in. The 03 is great for building up an old military collection.