Scientific Anglers Mastery MPX Materials the Frequency Boost

the Frequency Boost

RIO’s new flagship saltwater fly line has been designed for anglers hitting tropical flats in search of bonefish

omni-directional EVA foam allows for a secure grip

so are the bugs

Available in 4-piece and 6-piece configurations

Scientific Anglers Mastery MPX Materials the Frequency BoostHALF SIZE HEAVY LINE 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