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Marfione Custom Sigil MK6 Titanium M390 Acid Washed #001

Manufacturer: Custom Knives

Model: CU-3191


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Marfione upsized the Sigil into the new MK6 model for those wanting a larger blade. The new MK6 is about 10% larger than the original sigil model, and the result is a much better feel in the hand. This version has a total acid washed fallout finish, M390 blade and copper plate. Comes brand new from the Marfione custom shop.

The Blade: The blade of the Sigil MK6 is a long wharncliffe style with a pronounced hole and wonderful flipper action. It is hollow ground and honed to a razor edge and features plenty of jimping on the top of the spine. As expected, flipping action is smooth and consistent with the blade running on sealed ball bearings.

The Handle: Like most of Deryk Munroe's knives, this one has tons of detail in the handle with extra machining done to get the details just right. There is a copper plate to prevent lock overtravel, replaceable lock face and fully milled titanium clip all of which follow the knife's theme.

About M390: Bohler M390 has become an extremely popular choice for high-end user grade knives thanks to its extreme edge retention. M390 also has a good corrosion resistance, meaning most users can avoid problems by simply wiping off their blade after each use. Another great feature of this steel is its ability to resist burr formation during sharpening. Comparable steels are CTS-204P and Duratech 20CV.


Overall Length 8.75"
Blade Length 3.83"
Sharpened Length 3.65"
Blade Thickness 0.156"
Blade Material Bohler M390
Steel Type Stainless
Opening Mechanism Flipper
Lock Frame Lock
Closed Length 4.92"
Handle Thickness 0.517"
Handle Material Titanium
Clip Titanium
Sheath Nylon Zipper Pouch
Weight 5.20 oz.
Country of Manufacture United States