revolver knuckle

Revolver Knuckle is the armed device from Mahou Shoujo Lyrical Nanoha StrikerS, a heavy combat gauntlet passed down from Quint Nakajima to her daughters, who each inherited one half of the pair. It is a bulky metal gauntlets fitted with a spinning revolving cylinder at the wrist that loads magic cartridges. In art it appears on a raised fist, wrapped in sparks or blue magic energy as the wielder charges a punch.