Description
SP275CFPBK: C275CFPBK ButtonUp - Carbon Fiber Black Blade
Spyderco
Designed by Eric Glesser, the ButtonUp is Spyderco's first-ever manual-opening button lock folding knife. It combines a high-strength, ultra-convenient button lock mechanism with ball bearing pivot washers to yield one of the smoothest and most "fidget-friendly" folder actions Spyderco has ever produced. Available in both PlainEdge and partially serrated CombinationEdge formats, its modified clip point blade is crafted from 8Cr13MoV stainless steel and boasts a full-flat grind for superior edge geometry and strength. The non-reflective black oxide-coated blade is housed in an open-backed handle constructed with smooth carbon fiber/G10 laminate scales reinforced with nested stainless steel micro-liners around the pivot and lock. To ensure convenient carry and keep the knife poised for quick access, it includes a reversible hourglass clip that provides a choice of left or right-side tip-up carry. The clip anchors to a second set of micro-liners nested in the butt of the handle and straddles a lined lanyard tube that allows the easy attachment of fobs and lanyards. In keeping with the spirit of its black-coated blade, the clip, button, and other handle hardware also sport non-reflective black coatings.
Specifications
- Blade Length: 3.27" (83 mm)
- Cutting Edge: 2.71" (69 mm)
- Closed Length: 4.43" (113 mm)
- Overall Length: 7.68" (195 mm)
- Blade Thickness: 0.118" (3.0 mm)
- Blade Material: 8Cr13MoV Stainless Steel
- Blade Style: Modified Clip Point
- Blade Grind: Full-Flat
- Blade Finish: Black Oxide
- Blade Edge: Plain
- Handle Material: Peel-Ply Carbon Fiber/G10 Laminate
- Handle Color: Black
- Locking Mechanism: Button Lock
- Pocket Clip: Tip-Up, Left/Right Carry
- Model Number: C275CFPBK
- Model Name: ButtonUp - Carbon Fiber Black Blade
- Weight: 2.12 oz. (60 g)
- Designer: Eric Glesser
- Made in China
UPC Code: 716104019793
8Cr Stainless Steel
One of the most common budget stainless steels, it maintains a competitive combination of edge retention and toughness in its price range.
Carbon Fiber Handles
Very strong and lightweight material. Provides an upscale and modern feel.
Pocket Clip
Includes a pocket clip for easy accessibility and a more secure carry.
Spyderco ButtonUp Button Lock Folding Knife 3.27" Black Oxide Modified Clip Point Plain Blade, Peel-Ply Carbon Fiber/G10 Laminate Handles, Reversible Clip
(3 reviews) 4.7 out of 5 stars
Spyderco ButtonUp Button Lock Folding Knife 3.27" Black Oxide Modified Clip Point Plain Blade, Peel-Ply Carbon Fiber/G10 Laminate Handles, Reversible Clip
Pros: Blade Sharpness, Ease of Opening, Handle Feel, Handle Material, Lock Ease of Use, Lock Type, Overall Quality, Pocket Clip, Weight
Cons: Blade Material, Sheath
Spyderco Button Up
Great fit and finish, the action is nice and smooth and the button lock is great. The only thing I would like to change is the size, make this in a 4" blade and it will be a home run.
Spyderco ButtonUp Button Lock Folding Knife 3.27" Black Oxide Modified Clip Point Plain Blade, Peel-Ply Carbon Fiber/G10 Laminate Handles, Reversible Clip
Pros: None
Cons: None
Buttonup
Good knife for the price
Spyderco ButtonUp Button Lock Folding Knife 3.27" Black Oxide Modified Clip Point Plain Blade, Peel-Ply Carbon Fiber/G10 Laminate Handles, Reversible Clip Xander
Wisconsin
Jun 22, 2026
Pros: Ease of Opening, Handle Feel, Handle Material, Lock Ease of Use, Lock Type, Overall Quality, Pocket Clip, Weight
Cons: Blade Material
Fidget toy
It's a button lock with super cheap steel. It's my new fidget toy! The price was a little high for cheap steel .
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Close-up of hand holding knife, opening or unsheathing knife, and then closing or sheathing knife.
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