From trench armor to anti-aircraft guns, these four hidden military gun collections rival some of the most famous museums in the world.
K9 training is an intense process, so the Skillset boys dropped by K9 Defense and put on the bite suits for some hands-on training ... and screaming.
Green Beret and retired MMA fighter Tim Kennedy is one of the toughest individuals on the planet and he's now on the cover of Ballistic.
Author and former Navy SEAL Jack Carr went long-range with Ballistic at Utah's Sub MOA Shooting School where he spoke about his books and military training.