The Armadyl helmet is an item that can be obtained from Kree’arra and his bodyguards in the God Wars Dungeon. Along with the Armadyl chestplate and chainskirt, it is part of the Armadyl armour set, and requires 70 Defence and Ranged to wear.
The helmet has the highest ranged attack bonus of any item in the headwear slot. The prayer bonus also makes it desirable for the Fight Caves.
There is also an extremely low chance that it can be dropped by Armadylian and Bandosian guards when doing elite clue scroll coordinates.