Heavy Crossbow +3 is an enchanted heavy crossbow. It has +3 bonus to thaco damage and speed factor it's 4 lbs lighter than a non-enchanted heavy crossbow. This item appears in Baldur's Gate II: Throne of Bhaal and this item will probably appear in Baldur's Gate II: Enhanced Edition. It can be bought from the Tankard Tree in Saradush and from the merchants Karthis al-Hezzar and Carras.