Buck 040 Onset Flipper S45VN Black G10 Stainless Steel Frame Lock Folder 0040BKS

Model: BU-0040BKS
Manufacturer: Buck
Retail: $220.00
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The Buck Onset flipper has a deceptively simple look while delivering excellent operation and modern features. A classic drop point blade comes in a performance driven full flat grind and fast bearing pivot while the minimalist handle is robust, rugged, and ready for work. This version comes with a black G10 scale and satin finished S45VN blade. Backed by the Buck Forever Warranty.

Brand new, direct from Buck Knives.

Blade: Satin finished S45VN steel with BOS heat treat delivers excellent performance on the drop point blade. Riding fast and smooth on the ball bearing pivot with ambidextrous flipper deployment. The blade has a full flat grind for balanced performance and good durability with jimping for traction on the spine. 

Handle: The handle is clean, simple, and modern in style, offering a solid ergonomic grip thanks to chamfered edges and secure traction from the G10 front scale. The flipper doubles as an index guard, while the sweep of the handle creates a point that holds the fingers securely without the need for grooves or jimping. Barrel spacers form a light and low maintenance open construction with the front scale and frame. Supported by a lock bar stabilizer/over travel stop the integral steel frame lock offers reliability and secure lockup. 

Carries via a right hand, tip-up, stainless steel deep carry clip.

CPM-S45VN: An evolution in Crucible's S30-series, S45VN shows improved edge retention and corrosion resistance relative to S35VN and offers an upgrade to Elmax with better hardness, corrosion resistance, toughness, and sharpness with similar edge retention.


Overall Length 8.20"
Blade Length 3.30"
Sharpened Length 3.15"
Blade Thickness 0.12"
Blade Material CPM-S45VN
Blade Type Stainless
Blade Rockwell 59-61 HRC
Opening Mechanism Flipper
Lock Frame Lock
Closed Length 4.90"
Handle Thickness 0.45"
Handle Material G10, Steel
Clip Stainless Steel
Clip Position Tip-Up
Weight 5.00 oz.
Country of Manufacture United States