The Benchmade 3370GY Claymore Auto is an out the front automatic with a 3.89 inch double edge CPM-D2 dagger blade in a smoke grey finish, housed in a black Grivory handle. It was built for powerful tactical self defense and hard use utility, and it opens with the kind of lightning fast automatic actuation that makes an OTF worth owning. The result is a knife that deploys instantly and still handles serious work once it is open.
What the Benchmade 3370GY Claymore Auto Brings to the Table
Out the front automatics live or die on their action, and the Benchmade 3370GY Claymore Auto is known for exactly that. The blade fires straight out of the handle on a slider release button, which means one hand, one motion, and no rotation of the blade through an arc that a folding knife requires.
The double edge dagger grind is a deliberate choice. It is a self defense oriented geometry that prioritizes penetration and point strength, which is why the Claymore is framed as a tactical piece rather than a pocket utility slicer.
It is aimed at users who want a knife that works under stress: professionals in demanding roles, shooters building out a serious kit, and enthusiasts who appreciate the engineering behind a well executed automatic.
Key Features
- Out the front automatic configuration with a slider release button for fast one hand deployment
- Double edge dagger blade in CPM-D2 for strength and edge retention through hard use
- 3.89 inch blade length with a smoke grey finish that cuts glare and resists wear
- Lightweight black Grivory handle with the iconic ball bearing matrix texturing for grip
- Ambidextrous layout that gives confident control regardless of which hand is free
- Built for strength and durability through hard use tasks rather than light everyday cutting
Steel, Handle, and the Numbers Behind the Design
CPM-D2 is a powder metallurgy version of a proven tool steel. The powder process gives a finer, more uniform carbide structure than conventional D2, which translates into better toughness and a cleaner edge at the same hardness. In a double edge dagger, where the point takes real abuse, that toughness matters.
The Grivory handle is the other half of the equation. It is a glass reinforced polymer that keeps the knife light in the pocket while still supporting the mechanism, and the ball bearing matrix texturing gives you purchase with wet or gloved hands. Benchmade also offers the Claymore in Ranger Green, and in plain edge or oversized dual serrated blade configurations, so the platform can be matched to how you actually use a knife. See what Benchmade builds across the line and it becomes clear the Claymore was engineered as a system, not a single part.
Practical Use, Care, and Legal Compatibility
The Benchmade 3370GY Claymore Auto has its own maintenance rhythm, as all automatic knives do. Keep the track clean, because grit inside an OTF handle is the single most common cause of sluggish deployment. Blow out the channel with compressed air, avoid heavy oils that attract debris, and use a light lubricant sparingly on the moving parts.
Sharpen a double edge dagger with patience. Both edges need equal attention so the point stays centered, and a guided system helps far more here than freehand work does. Wipe the blade down after use, especially after contact with moisture or salt, since D2 family steels are only semi stainless.
Automatic knife laws vary by state and municipality, so confirm what applies where you live and where you travel before you carry. When you are equipping the rest of your kit, browse the tools, protection, and carry equipment in our apparel and gear category.
Final Word
An out the front automatic is a specialist tool, and the Claymore is one of the better executed examples in the category. Fast, strong, light in the hand, and built around a steel that can take punishment, it does what a tactical knife is supposed to do without pretending to be a kitchen slicer.
If you want serious capability in a knife you can open with one hand and no thought, this is the one to look at. Ships direct to your door, no FFL required.
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