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FX Crown 500mm STX Barrel, Fixed Shroud & Moderator, AMP Reg

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For those that love the adjustability and performance of the FX Impact, but wanted a more classic rifle look, this is the gun for you. Taking aspects from both the Royale and the Impact, FX Airguns have produced one of the finest airguns ever.

The Superlight STX uses a newly engineered and imagined barrel housing to hold the STX liner. The liner is no longer housed in a long steel tube, but rather is now placed in a very sturdy barrel attachment section that results in a more rigid barrel. The shroud on the Superlight STX barrel is a fixed shroud with an included FX Moderator (1/2” UNF).  

The action of the Crown also received an upgrade. The previous dovetail scope rail has been replaced with an integrated picatinny rail. To further ensure that the barrel is rigid, this new action has four set screws to secure the barrel in place (two screws coming in at an angle on either side of the action)


Caliber .22 .25 .30
Pellet used for testing JSB 18.13 gr JSB 25.39 gr JSB 44.95 gr
Tuned velocity 875-890 fps 890-905 fps 840-850 fps
Factory Magazine Capacity 18 16 14
Shots per Fill (250 bar > 150 bar) 85-100 60-70 45-55
Action Sidelever Sidelever Sidelever
Gun Weight (Synthetic) 6.4 lbs 6.7 lbs 6.7 lbs
Gun Weight (Walnut) 7 lbs 7.3 lbs 7.3 lbs
Gun Weight (Laminate) 7.1 lbs 7.4 lbs 7.4 lbs
Overall Length 38.5" 43" 43"
Barrel Length 500mm or 600mm 600mm 600mm