Guns are at the top of many Christmas lists, especially if November is any indication.

Last month, the FBI ran more than 2.2 million firearm background checks on potential buyers, a 24 percent increase from November 2014. On Black Friday, a record 185,345 background checks were processed by the FBI.

That increase coincided with the coordinated terrorist attacks at multiple sites in Paris by ISIS gunmen on Nov. 13 that killed 130 people and wounded 368.

Weeks later, on Dec. 2, an attack on a holiday party in San Bernardino, California, killed 14 and injured 17 others.

It marked the 355th mass shooting in 336 days this year and the deadliest since the Sandy Hook Elementary School shooting in Connecticut three years ago.