Gun enthusiasts look over Smith & Wesson pistols at the NRA Annual Meetings and Exhibits on May 21, 2016, in Louisville, Kentucky.

Shares of major gun makers were down as much as 2 percent Tuesday on a report industry sales are likely to cool off next year.

In a research note Tuesday, Wunderlich Securities analyst Rommel Dionisio predicted industry sales are "likely to slow, following unusually high growth in 2016."