Arena Group Chairman and CEO Ross Levinsohn notified employees yesterday that “After much deliberation, we have signed an agreement to sell the firearm-related Athlon Outdoors business. “ According to his memo, the decision was based on the realization that Athlon “did not easily fit in any of our other Arenas.” Athlon Outdoors includes magazines and digital publishing properties including Ballistic, Combat Handguns, Tactical Life, Guns of the Old West, American Frontiersman, and others. No purchaser was named in the announcement.