Adamantite limbs

Adamantite limbs are required to make an adamant crossbow. They can be smithed from an adamantite bar at level 76 Smithing, granting 62.5 experience. Adamantite limbs can also purchased from the crossbow stall in Keldagrim.

At level 61 Fletching, adamantite limbs can be attached to a mahogany stock at Fletching level 61, granting 82 experience, to make an Adamant crossbow (u).