Assassin’s Bracers

Black studded leather bracers with leather straps and a mechanical device hiding two short daggers on the underside. 

You can use a bonus action to activate the hidden blades, unsheathing them from the underside of each bracer.

While activated your unarmed strikes deal an additional +1d4 slashing damage. You gain an additional +1d4 slashing damage if the target of your unarmed strikes is surprised or you have advantage on the attack.

When you are hit by a melee attack you can see, you can use your reaction to gain a +1 bonus to AC. 

Notes: Bonus: Armor Class, Combat, Warding, Wristwear