The original incarnation of the super sledgehammer, produced by the United States military, is a bizarre looking weapon compared to its predecessor. The head of the hammer contains the kinetic storage device and a pair of faces that transfer the stored energy to the target. It is mounted on a shock damper held in place by springs, designed to reduce the recoil produced by the impact to manageable, non-lethal levels. Additional padding helps make it more comfortable to use, while a fixture at the terminal end of the shaft ensures it won't slip out of the user's hands. It is by far the most widespread model in the United States, commonly seen in the hands of high-tech factions and where the Brotherhood's own variant is not available.
It is a heavy two-handed hammer, and contains a kinetic energy storage device to increase the knockback effect of the weapon. It is rather cumbersome and slow, but very powerful. The super sledge is a top-tier melee weapon, so it requires a 100 in Melee Weapons and an 8 in Strength to use at maximum efficiency.
It's special V.A.T.S. attack is "Mauler", which does 50% damage at the cost of 48 action points and has a chance to knock enemies down (requires a Meleeskill of 50). Outside of V.A.T.S. it can be activated by running and holding down the attack button.
Oh, Baby!, a unique variant that's more powerful and more rusted.