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The FX Superior Heavy Slug Liner 500mm 5.5mm (.22) is recommended for use with heavy pellets and slugs. Compatible with FX Crown, Dreamline, and Impact models with 500mm STX barrels.

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Get the FX Superior Heavy Slug Liner 500mm 5.5mm (.22), recommended for use with heavy pellets and slugs. Compatible with FX Crown, Dreamline, and Impact models with 500mm STX barrels.

This FX Superior Smooth Twist X Heavy Barrel Liner (Superior STX Heavy Barrel Liner) has a unique twist rate. Therefore it performs better than standard Superior STX barrel liners when firing heavier pellets and slugs. They developed the Superior STX Heavy system using the same ground-breaking exterior-pressed rifling, but with more precise tolerances and methods. In comparison to the 700mm version, this 500mm version keeps your rifle nice and compact. All while maintaining a length that is almost 20cm shorter.

Known for their accuracy and ability to handle higher-weight pellets and slugs, shooters look to FX Superior heavy liners. Regardless of the barrel length, this liner will make shooting easier with its fast twist rate. Get a Superior STX Heavy barrel liner and install it in your FX air rifle right away if you’re looking for a simple way to improve it.


About FX Airguns

Fredrik Axelsson founded FX Airguns in the small picturesque town of Mariestad, Sweden in 1999. As a passionate airgun enthusiast, he was constantly on the look for the best airgun available. When Fredrik didn’t find what he was looking for, he started on the journey to create the airgun of his dreams. Two decades later, he has more than succeeded.

The highly skilled FX team relentlessly introduce cutting edge technologies. FX Airguns propelled the airgun industry into a new era, where they are globally considered an industry leader. As intricate as their guns are, the philosophy behind their creations is quite simple; to provide the most exceptional airgun in every possible way; and so, they have.

A team of over 50 Swedish craftsmen and engineers that have honed their skills to perfection lovingly handcraft FX’s airguns; and airgun lovers worldwide have rightfully come to expect much from them. FX won’t let an airgun leave the factory until they have thoroughly tested it in all aspects of its masterfully engineered capacities. FX Airguns provide superior accuracy, dependable consistency, as well as being remarkably quiet, efficient and extremely powerful.

A trailblazer for the airgun industry since its inception, their merit list is long. They have more patents, unique innovations and are more technologically advanced than any other airgun manufacturer existing today.

The backbone of FX Airguns has always been and will always be their deep passion for the airgun sport and their drive to outperform yesterday.


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