Strong Arm

Strong Arm is an enchanted composite longbow +2, but it requires a Strength of 19 points to be able to use this weapon, which means that only Dorn II-Khan in the enhanced edition can wield it without a strength boosting item. It adds a +3 bonus and -3 THACO bonus to arrows fired from this weapon. Despite the fact in which the statistics claim the weapon has a speed factor of 4 and a weight of 7 lbs, it's in infact a speed factor of 5 and a weight of 8 units.

This item appears in Baldur's Gate II: Shadows of Amn and Baldur's Gate II: Enhanced Edition. It can be bought from the Adventurer's Mart in Waukeen's Promenade.

In-game description
"Strong Arm +2 This massive bow was the property of the ranger Bearpaw, who reportedly received it from a strangely benevolent ogre. The reason for the gift was never discussed, but he earned the respect of everyone he met, and likely befriended the creature while patrolling the Cloakwood Forest. Bearpaw could draw back the bow without the slightest effort, but when he died it was bequeathed to his wife and sons, and not a one could draw the string even halfway. They eventually sold it to a merchant heading South."