Ornate Khorium Rifle

The Ornate Khorium Rifle is a slow ranged weapon with agility and hit rating bonuses, which is ideal for high burst damage.

Source
The Ornate Khorium Rifle is crafted by Engineers with a skill level of 375. The is a Non-Binding world drop from high-level mobs and instances.

Trivia
When introduced, the Ornate Khorium Rifle was the slowest gun in-game.