Buck Onset Knife Series

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The Buck Onset Flipper knife series offers a modern, tactical upgrade to your everyday carry. Crafted in the USA, this sleek folding knife features premium S45VN steel for excellent edge retention and durability. With ball-bearing flipper deployment and a frame lock with overtravel protection, the Onset ensures secure, reliable use in any situation. It combines a streamlined pocket-friendly design with robust performance, making it an ideal choice for those seeking a high-quality folding knife. Backed by Buck’s Forever Warranty, the Onset series delivers both style and substance.
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Buck 040 Onset Flipper Knife 3.325" S45VN Satin Drop Point Blade, Black G10 Handles, Frame Lock…Retail price: $235.00, our price: $189.99
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Buck 040 Onset Flipper Knife 3.325" S45VN Black Cerakote Drop Point Blade, OD Green G10 Handles…Retail price: $245.00, our price: $200.00
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Buck Onset Series FAQ

The Buck Onset series represents a premium, American-made approach to modern everyday carry, combining heritage design cues with advanced materials like S45VN steel. These folders utilize a ball-bearing pivot to provide a smooth, tactical flipping action that distinguishes them from traditional Buck designs.

What steel is used for the Buck Onset series?
Every knife in the Buck Onset series features premium S45VN stainless steel to provide superior edge retention and toughness. This material choice ensures the series can withstand heavy daily use while offering better corrosion resistance than previous generations of stainless steel.
Is the flipping action on the Buck Onset smooth?
Yes, the Buck Onset uses a ball-bearing flipper pivot that provides a crisp and reliable deployment. This mechanism is specifically designed to offer a more consistent and responsive action than earlier Buck series like the Vantage or Sprint.
What type of locking mechanism does the Onset use?
The Onset series is built with a robust stainless steel frame lock for secure blade retention. It also includes a stabilizing disc that acts as an overtravel stop to prevent the lock bar from moving too far, ensuring long term durability of the locking mechanism.
What is the blade shape on the Buck Onset?
The Buck Onset features a 3.325 inch drop point shape with a full flat grind. This geometry makes the series highly effective for slicing tasks and general utility work by balancing tip strength with a generous cutting belly.
How does the handle design reference Buck heritage?
While the Onset is a modern tactical folder, the handle curves on the underside and rear are designed to echo the visual DNA of the classic Buck 110. This integration of heritage styling provides familiar ergonomics in a contemporary G10 and stainless steel construction.
Is the pocket clip on the Buck Onset reversible?
No, the pocket clip on the Onset series is non-reversible and is set for tip-up, right-hand carry. The clip uses a folded design that is offset from the frame with standoffs to ensure a secure fit in the pocket.