The NRA has supported and helped author every gun control legislation in the past 100 years.
From their own 1968 American Rifleman article:
"Item: The NRA supported The National Firearms Act of 1934 which taxes and requires registration of such firearms as machine guns, sawed-off rifles and sawed-off shotguns.
Item: The NRA supported The Federal Firearms Act of 1938, which regulates interstate and foreign commerce in firearms and pistol or revolver ammunition, and prohibits the movement in interstate or foreign commerce of firearms and ammunition between certain persons and under certain conditions.
The NRA supported the original "Dodd Bill" to amend the Federal Firearms Act in regard to handguns when it was introduced as S.1975 in August, 1963. Among its provisions was the requirement that a purchaser submit a notarized statement to the shipper that he was over 18 and not legally disqualified from possessing a handgun.
NRA support of Federal gun legislation did not stop with the earlier Dodd bills. It currently backs several Senate and House bills which, through amendment, would put new teeth into the National and Federal Firearms Acts. The essential provisions which the NRA supports are contained in 2 Senate bills introduced by Senator Roman L. Hruska (Nebr.) and House bills introduced by Congressmen Cecil R. King (17th fist.-Calif.) and Robert L. F. Sikes (1st Dist.Fla.). These bills would:
1. Impose a mandatory penalty for the carrying or use of a firearm, transported in interstate or foreign commerce, during the commission of certain crimes.
2. Place "destructive devices" (bombs, mines, grenades, crew-served military ordnance) under Federal regulation.
3. Prohibit any licensed manufacturer or dealer from shipping any firearm to any person in any State in violation of the laws of that state.
4. Regulate the movement of handguns in interstate and foreign commerce by:
a. requiring a sworn statement, containing certain information, from the purchaser to the seller for the receipt of a handgun in interstate commerce;
b. providing for notification of local police of prospective sales;
c. requiring an additional 7-day waiting period by the seller after receipt of acknowledgement of notification to local police;
d. prescribing a minimum age of 21 for obtaining a license to sell firearms and increasing the license fees;
e. providing for written notification by manufacturer or dealer to carrier that a firearm is being shipped in interstate commerce;
f. increasing penalties for violation. "
And each time, you're knocked down by people who have more than your modicum of sense. I'm not particularly interested in arguing with someone who has been KO'd dozens of times and still comes back to get hit in the face at every opportunity.