The Cold Steel FGX Karambit 4" tactical knife is a fixed-blade karambit built for serious everyday carry, training, and tactical use. Unlike traditional steel karambits, Cold Steel engineered this one from Griv-Ex—a fiberglass-reinforced polymer that eliminates rust, corrosion, and weather damage entirely. The blade won't warp, crack, or split in extreme heat or cold, making it genuinely reliable in environments where steel folds under stress. If you train or deploy in wet, salty, or harsh conditions, or simply want a karambit that requires zero maintenance, this is the tool that delivers.

The handle pairs Griv-Ex construction with a deeply checkered Kray-Ex grip surface molded directly onto the tang. That textured, slightly tacky feel locks your hand in place in wet or slippery conditions—critical for a blade where blade control matters. At 2.3 ounces, the FGX karambit is light enough to tuck, tape, or rig almost anywhere without adding bulk. The 4-inch blade and 4.5-inch handle combine in an overall length of 8.5 inches, keeping the profile compact without sacrificing reach or utility.

Cold Steel designed the FGX line for concealment and durability in tough environments. The polymer construction means this karambit is airport-friendly for training transport, and it stores safely in conditions that would destroy steel—think vehicle trunks in desert heat, marine environments, or long-term cache scenarios. No sharpening, no rust inhibitor, no fidgeting with maintenance. Grab it, use it, forget about it.

Key Features

• Griv-Ex blade—never rusts, warps, cracks, or splits regardless of moisture or temperature extremes
• Deeply checkered Kray-Ex grip molded directly to the tang for decisive purchase in wet or gloved hands
• Lightweight at 2.3 oz for versatile carry, taping, or tactical rigging
• Compact 8.5-inch overall length with a 4-inch blade—concealable but functional
• UV and heat-stabilized polymer resists degradation in direct sunlight and temperature swings
• Zero-maintenance blade—no corrosion, no sharpening, no rust inhibitor needed

Specifications

Blade Material	Griv-Ex (fiberglass-reinforced polymer)
Blade Length	4 inches
Blade Thickness	7.5mm
Handle Material	Griv-Ex with molded Kray-Ex checkered grip
Handle Length	4.5 inches
Overall Length	8.5 inches
Weight	2.3 ounces
Blade Type	Karambit (fixed blade)

Frequently Asked Questions

Will this karambit rust or corrode in saltwater or wet environments?

No. The Griv-Ex blade is completely unaffected by moisture. It won't rust, warp, crack, or split even in harsh marine, tropical, or consistently damp conditions—making it ideal for coastal training, boat storage, or humid climates where steel karambits would quickly degrade.

Can I sharpen the FGX Karambit blade?

The blade is made from Griv-Ex polymer, not steel. It does not require or benefit from traditional sharpening. Maintenance is essentially nonexistent—no honing, no oil, no rust inhibitor needed.

Is this karambit light enough for everyday pocket or belt carry?

Yes. At 2.3 ounces and 8.5 inches overall, the FGX karambit is light and compact enough to carry in a sheath, tuck into a boot, secure with tape or cordage, or rig to gear without adding noticeable weight or bulk.

How does the Kray-Ex grip perform in wet or gloved conditions?

The deeply checkered Kray-Ex surface is molded directly to the tang and has a slightly tacky feel designed to hold your hand firmly even when wet, sweaty, or gloved. It's built for the conditions where grip failure matters most.