Weapon

Uncommon Requires Attunement

This springloaded armpeice attatches to the outer-forearm of an Automaton, and as such can only be attuned and integrated by an Automaton.
A creature attuned to this launcher can use any thrown alchemical items (such as alchemist fire, acid, or bombs) with a bonus action rather than an action, doubles the distance these items can be thrown, and adds their proficiency bonus to attack rolls made with these items.
Breaking attunement to this item takes one minute, after which it is no longer integrated.