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Reference SKU FX20409S

FX STX Superior HEAVY Slow Twist Liner 700mm


This 700mm version provides more velocity and power compared to shorter versions. Shooters looking to add flexibility to their FX air rifle should buy an FX STX Superior Slow Twist Liner today from Pyramyd Air.


The FX STX Superior Slow Twist Liner features a 1:37 twist rate that is slower than that of the standard liner installed on FX air rifles. This slower rate helps to optimize velocity and accuracy for long range shooting and is especially resistant to the effects of wind.

FX STX Superior Slow Twist Liner

  • 1:37 twist rate
  • Compatible with FX air rifles with 700mm liners
0 Items
SKU FX20409S
700 mm

Specific References