Lizal Gauntlet (5e Equipment)
From D&D Wiki
This bulky shield covers one's entire arm, is comprised of extremely thick steel plates, and is designed to be used both defensively and offensively. It can be used as a martial melee weapon that inflicts 1d6 bludgeoning damage, and doing so does not forfeit its bonus to AC.
Glove: A glove weapon is worn on your hand or forearm, and you cannot be disarmed of it. You can hold objects, wield weapons, and cast spells with a hand fitted with a glove weapon, but you can only attack with the glove weapon if that hand is unoccupied.