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Scientific Anglers Amplitude MPX Fly Line


Finesse is Best

Scientific Anglers made the Amplitude MPX Fly Line to revamp their old GPX model. The result? A line with the same casting power, but a more precise presentation. Built for fast-action fly rods, this line is a half-size heavy, working hand in hand with the added Shooting Texture to deliver long casts with ease. But the MPX doesn't stop at long-distance casting. The redesigned MPX taper lets you handle short-range casts with the highest precision, so you can pull one in from close-range as well. To top it off, Scientific Anglers tacked on their revolutionary AST Plus slickness additive, giving you confidence that your new favorite line will perform when the fish of your life gives you an opportunity.


  • Versatile fly line for large dry flies and streamers
  • AST Plus slickness additive keeps your line slicker than ever before
  • Floating Texture on the tip traps air for superior flotation and roll casting
  • Improved dry tip keeps your fly floating high in the water
  • Shooting Texture running line lets you cast farther
  • Braided, multi-filament core fishes well in moderate and cold climates
  • Half-a-size heavy for fast actions rods
  • Welded loops offer easy attachment


  • Best Use: Fly Fishing
  • Grain Weight: [WF-4] - 130g; [WF-5] - 150g; [WF-6] - 175g
  • Head Length: [WF-4] - 34'; [WF-5] - 36'; [WF-6] - 38'
  • Length: 90'
  • Line Type: Floating