The Smith & Wesson M and P Neck Knife has a 3.75-inch black stonewashed stainless karambit blade over a full extended tang at 8.25 inches overall, a black G10 handle with a finger ring and a black nylon neck sheath.
The karambit comes from Southeast Asia, where it began as an agricultural tool for raking roots, and the finger ring is what defines it. A finger passes through the loop so the knife cannot be pulled or twisted out of the hand. The curved blade cuts on the pull, trapping material in the curve where the edge bites rather than letting it slide off.
Building a karambit as a neck knife rather than a folder means no pivot to fail and nothing to open with the other hand occupied. Black stonewash leaves the blade already textured, so use marks blend into the finish, and it throws no reflection. Explore more Boot and Neck Knives.
- Finger ring stops the knife leaving the hand
- Curved blade cuts on the pull, trapping material
- Fixed blade, so no pivot to fail or open one-handed
- 3.75-inch blade, 8.25 inches overall








