Four Armed

You have four arms either due to a mutation, or augmentation gaining you the following benefits

• you can hold weapons and items in your extra arms, the arms count as  a small creature for interacting with weapon properties
• while holding two light weapons in your extra arms you can use your bonus action to attack with both of the arms
• you can menipulate objects and magic items that need an action to use as a bonus action, for example: you make a longsword attack with your main hands and then throw an acid vial with your extra arms