Scientific Anglers - Mastery Series GPX Fly Line | OFF Fly Shop



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The term “GPX” means different things to different anglers, but the one overriding attribute everyone can agree upon is this: it’s awesome to fish. Built a half-size heavy, the GPX’s extra weight up front helps load fast-action rods and can greatly increase line speed when used with a double haul. It’s also our most popular taper. For good reason.

  • Our finest all-around fly line taper
  • Made a half-size heavy to load fast-action rods
  • More powerful front taper handles dries, nymphs, streamers, and terrestrials with ease
  • Looped on both ends for quick rigging
  • Braided multifilament core
  • SA MS GPX WF X F (X = line weight)

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