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HALF-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 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 taper
- 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 AST slickness additive
- For use in moderate and cold climates
- Braided multifilament core
- SA ID – SA MS MPX WF X F (X = line weight)
At Front Range Anglers, we are committed to ensuring your satisfaction with every product you purchase.
Most products sold through our store are covered by the manufacturer’s warranty, which may vary by brand and product type. These warranties typically cover defects in materials and workmanship and may provide repair or replacement at the manufacturer’s discretion.
Customers are encouraged to retain proof of purchase and contact the manufacturer directly for warranty claims. Front Range Anglers can assist in facilitating communication with the manufacturer but does not provide its own uniform warranty on products.
Please review the specific warranty terms provided by each manufacturer to understand the coverage, duration, and process for making a claim.



