Composite Longbow are longbows from which the saves are made of two materials, which makes the bow more flexible, but a lower speed factor and they require a higher strength to be wielded. In return, the arrows shot from this bow deal +2 damage and have -1 THAC0 bonus, increasing the chance to hit. Bards cannot use this bow. This item appears in Icewind Dale and Icewind Dale II.
Composite bows are long bows or short bows whose staves are made from more than one type of material. This gives greater flexibility, and thus better range. These were developed after the normal long bow.