Reviews and Ratings for Fox FX-556 B4 Metamorphosis Radius Button Lock Flipper Knife 3.31" M390 Stonewashed Wharncliffe Blade, Green Canvas Micarta Handles with Brass Bolsters

Fox FX-556 B4 Metamorphosis Radius Button Lock Flipper Knife 3.31" M390 Stonewashed Wharncliffe Blade, Green Canvas Micarta Handles with Brass Bolstersrated 5 stars out of 5 (1 review)
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Fox FX-556 B4 Metamorphosis Radius Button Lock Flipper Knife 3.31 inch M390 Stonewashed Wharncliffe Blade, Green Canvas Micarta Handles with Brass Bolsters

 

Price: $310.39

Save $77.60 (20%) Off Retail

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Fox FX-556 B4 Metamorphosis Radius Button Lock Flipper Knife 3.31" M390 Stonewashed Wharncliffe Blade, Green Canvas Micarta Handles with Brass Bolsters
rated 5 stars out of 5
Jeff B.
Hyde Park, Ma
Aug 16, 2025
Pros: Blade Material, Blade Sharpness, Ease of Opening, Handle Feel, Handle Material, Lock Ease of Use, Lock Type, Overall Quality
Cons: Weight

What a completely unique, functional, and solid knife this is!

I bought the Fox Metamorphosis primarily because it is a truly different knife, using its "Radius" system to open and close the blade by rotating a button around a circular track, allowing very quiet, controlled, smooth, and non-threatening operation. It also has a standard flipper tab which works nicely and becomes a good finger guard. The blade is great, 3⅓ inches of M390, and the entire knife is TOTALLY solid. (This is NOT a lightweight or small knife!) The handle is also long and wide and grippy enough that I can get a very good hold on the knife with my large hands. This Micarta Metamorphosis is also "handsome", making it a good "gentleman's knife" if you can deal with its weight and size. All in all, the Metamorphosis is one of my favorite pocket knives, and I am very glad I bought it. :-)
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