The FX Dreamline Barrel Kit featuring the Smooth Twist STX system includes the shroud, barrel and o-rings, liner and pellet probe allowing you to easily change caliber on your FX Dreamline Air Rifle in minutes.

The rifle’s barrel is a core component, designed for a specific ammunition calibre. When you change calibres, the rifle’s power output will naturally be affected. This is due to variations in projectile weight, diameter, and propellant loads, which directly influence muzzle velocity and kinetic energy. It is always the end user’s responsibility to ensure that any changes in power output remain strictly within legal limits, as firearm regulations dictate. Non-compliance can lead to serious legal repercussions.