Gunmaker Smith & Wesson Holding (NASDAQ: SWHC) is pushing further to insulate itself from the vagaries of the firearms market: On Monday, it announced it was purchasing knife maker Taylor Brands for $85 million cash. Both Smith & Wesson and fellow publicly traded gunsmith Sturm, Ruger have benefited from the heightened clash over gun control in the wake of several tragic mass shootings, and from people wanting to protecting themselves, their families, and their property as such incidents gain national exposure.