The Spyderco Mantra 4 Black Oxide (model code C274GBBKP) is a slim, versatile, and ultralight EDC (Everyday Carry) folding knife that combines a tactical, monochrome aesthetic with advanced handling capabilities. With a total length of approximately 19.2 cm (handle 10.8 cm) and a weight of just 54 grams, this pocket knife delivers full-fledged cutting capability without adding significant weight to your gear.
The 8.4 cm long drop-point blade is crafted from proven 8Cr13MoV stainless steel with a hardness of 59 HRC. Thanks to the full-flat grind, the knife offers excellent cutting performance, minimal cutting resistance, and high precision for a wide range of everyday tasks. The matte Black Oxide coating provides a non-reflective, dark finish and offers an extra barrier against surface corrosion and friction.
The Mantra 4 stands out thanks to a dual-opening mechanism: in addition to the iconic Spyderco Round Hole, the blade features an integrated front flipper on the blade spine. Combined with smooth-running ball bearings around the pivot point, the knife opens quickly, in a controlled manner, and with minimal finger pressure.
For locking, the knife is equipped with a reliable LinerLock, in which a stainless steel liner locks securely behind the blade root. The handle scales are made of textured black G-10, which ensures a firm, non-slip grip in a variety of weather conditions. The reversible deep-pocket wire clip allows for discreet and comfortable carrying in a pants pocket (tip-up, suitable for both left- and right-handed use).
Benefits for the Target Audience
- Ultra-light weight (54 grams): Among the lightest full-size folding knives in its class, making the knife barely noticeable in a pants or chest pocket.
- Two intuitive opening methods: Choose between the classic Spyderco thumb hole (Round Hole) or the quick-opening front flipper, depending on your preference or situation.
- Smooth ball-bearing action: The ball-bearing system ensures smooth, low-friction rotation of the blade during opening and closing.
- Efficient cutting performance: The full-flat grind and balanced drop-point blade shape deliver a sharp, controlled cut for packaging, rope, cardboard, and food preparation.
- Discreet and deep carry: The minimalist deep-pocket wire clip allows the knife to sit deep in your pants pocket, preventing unwanted attention and reducing the risk of loss.
- Weather-resistant G-10 handle: The G-10 scales do not absorb moisture, do not warp, and provide a reliable grip for optimal control.
Instructions for Use and Operation
- Opening: You can open the knife by pressing your thumb into the Round Hole, or by using your thumb and index finger to make a short rolling motion across the textured front flipper tab at the top of the hinge.
- Closing: Press the stainless steel locking spring (LinerLock) on the inside of the handle to the left and fold the blade closed in a controlled manner, keeping your fingers away from the cutting edge.
- Clip configuration: The deep-pocket wire clip can be easily switched between left- and right-handed tip-up carry using a suitable screwdriver.
- Maintenance: Regularly clean the blade and pivot point of dust and cutting debris. Periodically apply a drop of light precision oil to the ball bearings and pivot. 8Cr13MoV steel is easy to maintain and resharpen using standard whetstones or ceramic rods.
Who is this product suitable for?
- EDC users: Shooters, technicians, and outdoor enthusiasts looking for a stylish, featherlight, and slim pocket knife for everyday use.
- Spyderco collectors and enthusiasts: Users who want to experience the combination of Spyderco’s classic design language with a modern front flipper and ball bearings.
- Both left- and right-handed users: Thanks to the central placement of the Round Hole and the reversible wire clip, the knife can be used smoothly and comfortably with either hand.
The Spyderco Mantra 4 Black Oxide (C274GBBKP) combines thoughtful ergonomics with a minimalist weight of just 54 grams. With its two smooth opening mechanisms, ball-bearing guide, textured G-10 handle, and discreet deep-pocket wire clip, this all-black folding knife is a functional, modern, and extremely comfortable choice for everyday use.
