http://civilliberty.about.com/od/guncontrol/a/Gun-Rights-Ronald-Reagan.htm
The lone piece of significant legislation related to gun rights during the Reagan administration was the Firearm Owners Protection Act of 1986. Signed into law by Reagan on May 19, 1986, the legislation amended the Gun Control Act of 1968 by repealing parts of the original act that were deemed by studies to be unconstitutional.
The National Rifle Association and other pro gun groups lobbied for passage of the legislation, and it was generally considered favorable for gun owners. Among other things, the act made it easier to transport long rifles across the United States, ended federal records-keeping on ammunition sales and prohibited the prosecution of someone passing through areas with strict gun control with firearms in their vehicle, so long as the gun were properly stored.
However, the act also contained a provision banning the ownership of any fully automatic firearms not registered by May 19, 1986. That provision was slipped into the legislation as an 11th hour amendment by Rep. William J. Hughes, a New Jersey Democrat. Reagan has been criticized by some gun owners for signing legislation containing the Hughes amendment.