First, there's a couple of petitions that prolly don't do much, but don't take any time at all to do.
Repeal the NFA altogether.
Repeal 922o (aka The Hughes Amendment).
Pester your Representative about The Hearing Protection Act HR367.
Here's how to find yours.
Pester your Senators about The Hearing Protection Act S.59.
Here's how to find them.
Write a paper letter.
Be polite, be firm.
Share these links! Become "that person" on Facebook or whatnot.
Get on a "list"!
h/t to Military Arms Channel.