Scientific Anglers Mastery MPX Fly Line

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The Mastery Presentation Taper, half heavy size line built for modern fast action rods that does it all.
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  • Product Description
  • Features

Product Description

For years, the gold standard in the Scientific Anglers lineup was the GPX taper. From tossing small dries to slinging huge streamers, the GPX could do it all. But all good things must come to an end. Built a half-size heavy, the MPX taper starts where the GPX left off. Redesigned with more mass toward the front of the head, the MPX provides the same benefits of the GPX, with an added emphasis on presentation. The power is still there, only with an added bit of finesse. Meet your new best friend and the best all-around fly line we’ve ever made.


  • The ultimate general presentation line
  • Improved version of our GPX taper
  • Built a half-size heavy to load rods and turn over large flies easily
  • Excellent with dry flies, nymphs and streamers
  • Features the ST+ slickness additive
  • For use in moderate and cold climates
  • Braided multifilament core

Customer Reviews

Based on 3 reviews
MPX Mastery Trout

Great feel with my 7 wt

Chase Konkel
Great Line

This is a great line. Easy to cast and maneuver on the water. Great tweener in the middle of the highest priced lines and an economy one.

Jonathan Whitson
The Go-To From Now On

When I got my Ross Reel first set up at their old location, the guys at Trouts showed me the MPX. Not only is it a awesome price, it actually preformed better than expected. Very happy with my purchase, even set up my buddy's reel with it once his finally gave out.

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