I veiw it as an example of extraordinarily bad timing on Metcalfe's part.
We who support the Second Amendment are now engaged in an all-out battle against an array of anti-gun forces who collectively would strip us of the following rights: (1) the right to own semi-automatic weapons (under the anti-gun crowd's outrageously false claim that such firearms are "assault weapons"); (2) the right to own so-called "high-capacity" magazines (i.e., any magazine holding more than 7 or 10 rounds, depending on the zeal of the anti-gun proponent); (3) the right to carry concealed weapons (except of course for the bodyguards of those "limousine liberals" who finance much of the anti-gun battle); and (4) even the right of ordinary citizens to own firearms at all (e.g., that absurd Australian model).
In short, a war is being waged against the Second Amendment to the United States Constitution.
Think of it this way. If, during a time of war, someone on one side expresses views that appear to question some fundamental aspect of a cause his or her side is supporting and that appear to support arguments of the opposing side, the person expressing such views should not be surprised if the reaction of his or her compatriots ranges from alarm to outrage.
I was witness to the creeping gun control story that unfolded years ago in the District of Columbia. It was a perfect example of that old parable about the camel getting its nose under the tent flap -- progressing another step each year from simple "registration" to an outright ban that required the Supreme Court's intervention in Heller to restore even that most basic of rights -- that of owning a firearm to keep in your home. Also never forget that Heller was a close vote. The next time, a Court composed of new Justices may rule differently.
And also remember that the abominable UN treaty on international trade in small arms has been signed by the present Administration and, although lacking sufficient support in even today's Senate, may raise its ugly head in the future.
[Edited typo.]