You should be able to buy a dozen in a hardware store over the counter.
Bfl
 The reason for the law is all about the money.
I have to wonder why Republicans won’t pass some pro-gun legislation in the House and force this issue in the Senate by saying Democrats are uncaring about the health of law abiding Americans. I for one have reduced the amount of time that I shoot indoors to save my ears. There is no way that I am going to sign any form or pay any tax to the BATF. I don’t want my name on their lists and I certainly do not want to finance them.
Another fee I do not pay
 HA! While I have received approval in six months before, I was just told that another application I have in will take about ten months! This is so crazy...
 The whole funny-sad thing is that when you look at the Constitution all of this is crap — the federal government cannot legitimately tax arms. Period. 
 Why? 
Well, even though the Constitution does give some broad powers of taxation that is in the unamended Constitution — the very first amendments were the Bill of Rights, in which the preamble states:
THE Conventions of a number of the States, having at the time of their adopting the Constitution, expressed a desire, in order to prevent misconstruction or abuse of its powers, that further declaratory and restrictive clauses should be added: And as extending the ground of public confidence in the Government, will best ensure the beneficent ends of its institution.among which is the 2nd Amendment, which we all know states:
A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.It has been well known that taxing something infringes upon it, therefore any taxation applied to arms (and arguably their accessories) should be null and void.
  
 Sadly I there are no people who hold this sort of viewpoint [AFAIK] on the Supreme Court or in the courts in-general.
I remember that my grandfather told me that some of the politicians in Congress were ‘overly influenced’ by the gangster era movies at the time that showed the near total silence of a ‘silencer’ and how the ‘hit man’ could do his ‘hit’ and get away so easily.
As he was heard to remark many times before he passed away:
‘Those damned politicians get a common sense removal operation when the become one and receive a bucket of BullSh*t to fill up the empty spot with.’