"We stand with all Americans in condemning this senseless act of violence, a truly horrible act that defies any sense of rationality or explanation," Novin said. "And we continue to keep those affected by this tragedy in our thoughts and prayers."
It is unclear how the SHOT Show or highly publicized shootings influence gun sales.
On Jan. 10, one-day sales of handguns in Arizona jumped 60 percent compared with the corresponding Monday a year ago, according to data from the FBI's National Instant Criminal Background Check System. Handgun sales increased to 263 on Jan. 10, 2011, from 164 on Monday, Jan. 11, 2010. It was the second-biggest increase of any state in the country, as first reported by Bloomberg. Ohio had the biggest increase that day, 65 percent, from 240 sales that day in 2010 to 395 in 2011.
Novin argued that it was the actions of a person, not guns themselves, that led to the shooting.
"The recent tragedy in Tucson was not about firearms, ammunition or magazine capacity," Novin said. "It was about the actions of a madman. Period."