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Burger Custom EXK Plus Carbon Fiber Maple Burl Satin M390 IKBS Top Flipper

Manufacturer: Custom Knives

Model: CU-4189

Retail: N/A


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The Custom EXK Plus is a robust custom creation from knife maker Trevor Burger. This lightweight Gentleman's folder is perfect for everyday carry with a slim profile, clean lines and high performance materials. Excellent fit and finish paired with a well-thought-out design make this a dream to carry and use. This version comes with a hand rubbed satin M390, drop point blade and LVA Carbon Fiber handles with Maple Burl inlaid bolsters.

Brand new, direct from Burger Custom Knives.

Blade: The horizontal satin finished, M390 blade is a utilitarian drop point with plenty of belly and a shallow hollow grind. The blade delivers excellent slicing and piercing performance with a clean, elegant look. Bohler's M390 provides top of the line performance in a low maintenance platform. The blade deploys via a front flipper tab with jimping that allows for a slow, "manual" rotation deployment or a faster "flipper" operation. The addition of a ceramic ball bearing pivot adds to the silky smooth operation and delivers lightening fast deployment when required.

Handle: Blue anodized, dual titanium liner construction supports LVA Carbon Fiber Scales with matching back spacer and Maple Burl inlaid bolsters. Smooth finished, the handles are classy while still ergonomic and secure in the hand. One liner forms the simple, robust liner lock mechanism delivering secure use and ease of operation.

Carries via a blue anodized, right hand, tip-up, 3D machined titanium pocket clip.

This custom ships in a zippered nylon pouch with Certificate of Origin. 

Bohler 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 6.50"
Blade Length 2.75"
Sharpened Length 2.63"
Blade Thickness 0.13"
Blade Material M390
Blade Type Stainless
Blade Rockwell 60-62 HRC
Opening Mechanism Flipper
Lock Liner Lock
Closed Length 3.75"
Handle Thickness 0.50"
Handle Material Carbon Fiber
Bolster(s) Wood
Liner(s) Titanium
Clip Titanium
Weight 2.60 oz.
Country of Manufacture South Africa