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The Benchmade Infidel OTF AUTO switchblade features fast opening action, premium materials and construction, and is perfect for tactical and everyday carry. This top-selling automatic knife is favored for its reliability, precision, and robust design.

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Benchmade 3300BK Infidel Dagger AUTO OTF Knife 3.95" D2 Black Double Edge Blade, Black Aluminum… our price: $550.00
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Benchmade Mini-Infidel Dagger AUTO OTF Knife 3.10" D2 Black Double Edge Blade, Black Aluminum H… our price: $525.00
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Benchmade Infidel FAQ

The Benchmade Infidel series is a benchmark in the out-the-front automatic category, known for its symmetrical design and reliable double-action performance. This series includes both full-sized and mini versions to suit different tactical and everyday carry needs.

What blade steel is used in the Benchmade Infidel?
Standard Benchmade Infidel models typically feature D2 tool steel, which is prized for its high wear resistance and edge retention. Some limited edition versions upgrade the blade to CPM-S30V stainless steel with a stonewashed finish for improved corrosion resistance and durability.
Is the Benchmade Infidel fully ambidextrous?
Yes, the Benchmade Infidel features a perfectly ambidextrous design. Because the firing switch is mounted on the face of the handle rather than the side, and the dagger blade is double-edged, the knife functions identically for both left and right-handed users.
What are the size differences between the 3300 and 3350?
The 3300 is the full-sized Infidel featuring a 3.95-inch blade, while the 3350 Mini-Infidel is a more compact version with a 3.10-inch blade. Both models utilize the same high-strength aluminum handle construction and out-the-front mechanism.
What handle colors and finishes are available?
While the classic Infidel comes with black anodized aluminum handles, the series includes various limited runs in colors such as Woodland Green, Crater Blue, and Flat Dark Earth. These variants often feature specialized laser numbering and premium blade steels.
Why is the Benchmade Infidel popular for tactical use?
The Infidel is highly regarded for its fast-opening action and robust construction. Its OTF AUTO mechanism provides reliable deployment in high-pressure situations, while the handle ergonomics provide a secure grip for a variety of tasks.