Kettlebell Training... The Closest Thing You Can Get to Fighting, Without Throwing A Punch Federal Counterterrorist Operator The kettlebell. AK-47 of physical training hardware. Hunk of iron on a handle. Simple, sinister, brutal and ferociously effective for developing explosive strength, dramatic power and never-say-die conditioning. The man s man s choice for the toughest, most demanding, highest-yield exercise tool on the planet. Guaranteed to forge a rugged, resilient, densely-muscled frame built to withstand the hardest beating and dish it right back out, 24/7.