Off-hand chaotic crossbow

The Off-hand chaotic crossbow is the off-hand counterpart to the chaotic crossbow. It requires 80 Ranged and 80 Dungeoneering to purchase, and can be bought from the Rewards trader for 100,000 Dungeoneering tokens.

Dual-wielded chaotic crossbows are equal in damage and accuracy to the royal crossbow and zaryte bow. The latter two are two-handed and allow use of Dazing Shot and Incendiary Shot, while the chaotic crossbows give Needle Strike and Unload. The main-hand chaotic crossbow is also compatible with a shield.

Degradation table and repair costs
When first bought, it's 20% charged. It degrades in increments of 1%, every 1% costs 10,000 coins to repair. It can be repaired at the Rewards trader at Daemonheim, currently costing 1,000,000 coins to repair from 0%, or 100,000 coins and 10,000 Dungeoneering reward tokens. It takes 10 hours to fully degrade. It can be repaired whenever there's at least 1% charge missing.
 * 100% charged (Fully charged) – no cost.
 * 99% charged – 10,000 coins or 1,000 coins and 100 tokens.
 * 90% charged – 100,000 coins or 10,000 coins and 1,000 tokens.
 * 20% charged (After buying) – 800,000 coins or 80,000 coins and 8,000 tokens.
 * 0% charged (No charge) – 1,000,000 coins or 100,000 coins and 10,000 tokens.

Like all Chaotics and dungeoneering rewards (armour and weapons) it is 600 game ticks (or 6 minutes) of combat per 1% of degradation.

Overall it would be considered a viable choice, and is worth the time spent if looking for a very effective and powerful offhand crossbow. It is only surpassed in accuracy by the Off-hand ascension crossbow.