Armadyl armour is a set of ranged armour made of the Armadyl helmet, Armadyl chestplate and Armadyl chainskirt. Every piece needs level 70 Ranged and 70 Defence and gives +1 prayer. In the ::bis interface only Masori and Morrigan's pieces have more ranged attack in each slot (+10 helmet, +33 chestplate, +20 chainskirt), and only Morrigan's and Masori (f) pieces have more magic defence on the body and legs (+70 and +40), so Armadyl is a much cheaper alternative to those sets. Armadyl drops from Callisto and Divine Callisto and is sold in the Pk point shop.
Clue scrolls: the chestplate and chainskirt are possible rewards from hard reward caskets.
Crates and boxes: Gold Crate (any piece), Platinum Crate (chestplate or chainskirt), Wilderness Chest (3 noted chestplates or 3 noted chainskirts), PvP Mystery Box (chestplate or chainskirt), Vote Mystery Box (any piece) and the gold tier of some holiday event boxes (chestplate or chainskirt).
Achievements: Deep Wild kills (475 kills: a chestplate; 2,000 kills: a chainskirt), Overall kills (1,000 kills: a chestplate and a chainskirt), Multi kills (1,600 kills: 2 noted chestplates and 2 noted chainskirts) and Win a Tournament (36 wins: a noted chestplate and a noted chainskirt).
The medium daily task "Deal 2,500 PvP damage while wearing Armadyl armour (Helm, Chest, Legs)" needs all three pieces.
Above level 10 Wilderness (except during the Clan Cup), Morrigan's coif, leather body and leather chaps use the stats and look of the Armadyl helmet, chestplate and chainskirt.
Clue scroll steps of every tier sometimes ask you to wear an Armadyl piece.