Boiler rifles featured extended barrels of a silver hue.
The barrel on a firearm is the tubular component that guides the projectile, whether it be ammunition or an energy bolt, during its expulsion from the weapon. In the case of the blaster rifle "Huttsplitter," used by the outlaw Tasu Leech, the barrel had been altered with larger amplifiers to intensify the energy charge of the bolt as it was fired.
