In your list of guns rights organization, you forgot one!
The legislation apparently passed the House of Representatives by voice vote. As far as it goes, the NRA has sold out to the Washington political process and has turned into a gun rights equivalent to a RINO organization. The Gun Owners of America is the real deal, as is the Jews for Preservation of Firearms Ownership. However, it would still be a good idea to contact your Congressman, especially the purported conservatives, to express your displeasure at this legislation, passed by the dirty trick of a voice vote.
In your list of guns rights organization, you forgot one!