CRKT SiWi Compact Tactical Fixed Blade Knife
Compact 3.34-inch fixed blade designed by retired Sergeant Major Darrin Sirois and refined by expert Chris Williams. SK5 carbon steel with G10 handle and glass-reinforced nylon sheath.
The SiWi: Purpose-Built Precision
The CRKT SiWi represents a masterclass in collaborative design. Retired Sergeant Major Darrin Sirois drew upon 25 years of active military service to create a compact tactical blade that solved real-world problems. When renowned knife expert Chris Williams reviewed the original design, his suggestions elevated the SiWi into a category of its own.
Design and Construction
This is a fixed blade knife built for serious work. The 3.34-inch blade is forged from SK5 carbon steel—a material prized for its edge retention and ease of sharpening. A black powder coat finish protects the blade while maintaining a professional appearance.
Key Specifications:
- Blade length: 3.34 inches
- Overall length: 7.44 inches
- Blade thickness: 0.20 inches
- Weight: 5.6 ounces (knife only)
- Handle material: G10 (durable, textured composite)
- Plain edge for versatile cutting tasks
Practical and Reliable
At just 5.6 ounces, the SiWi carries without burden. The compact profile makes it ideal for everyday carry, tactical applications, or outdoor pursuits. The G10 handle provides secure grip in wet or dry conditions, while the included glass-reinforced nylon sheath ensures safe transport and quick access.
This is a knife designed by someone who understood the demands of the field—and refined by someone who knew how to make it better.
