Third-age ranger armour is a set of third-age armour and is the third most powerful Ranged armour available in Old School RuneScape, behind Karil the Tainted's armour (although, third age armour has better stab, slash, and crush defences) and the armadyl armour. It is made from white dragonhide, and as such, cannot be crafted by players. A Ranged level of 65 and a Defence level of 45 are required to wear this armour. To obtain this rare armour, players must either complete a hard clue scroll for a chance at receiving parts of it, or trade with players. The armour is so expensive that it is seldom used in combat and players who own them do so mostly as a show of wealth.
The chance of receiving one piece of third-age armour from a treasure trail is 1 in 3,510. The chance of receiving a specific piece of third-age armour from a treasure trail is 1 in 42,120. Both of these odds were confirmed by Mod Mat K in a Level 3 Clue Chest Opening Live Stream on 2nd July 2014.