Extrema Ratio 39-09 Combat Knife
Step into the legacy of elite Italian paratroopers with the EXTREMA RATIO 39-09 Combat Knife—where history, craftsmanship, and modern innovation collide. Born from a collaboration with COFS (Italy’s inter-force special operations command) and refined by seasoned professionals, this compact dagger revives the legendary Model 1939 “Assaltatore” blade. Every curve, angle, and contour has been meticulously preserved, then fortified with cutting-edge materials and contemporary military-grade treatments.
Imagine a tool that whispers of daring airborne missions yet feels at home in your hand today. The BöHLER N690 steel blade, hardened to 58 HRC, slices through tough cordage, carves precise notches, and withstands relentless field abuse. Its robust 6.3 mm spine delivers unwavering strength for prying and chiseling, while the sleek flat grind guarantees effortless control.
At just 284 mm overall and weighing a mere 306 g, the 39-09 strikes the perfect balance between portability and power. Slip it into the signature ankle sheath—an homage to Italian paratrooper tradition—and experience hands-free readiness that adapts seamlessly from urban environments to remote trails. When duty calls, deploy this knife with confidence: its razor-sharp edge and ergonomic FORPRENE handle ensure a secure grip, even under the heaviest load or in wet conditions.
Whether you’re a collector honoring military heritage or an operator demanding peak performance, the 39-09 Combat Knife stands as your steadfast companion. Extrema Ratio’s dedication to premium functional value means you’re not just purchasing a blade—you’re investing in decades of Italian expertise. This knife doesn’t merely survive conflict; it thrives in it, delivering the reliability and precision that have earned Extrema Ratio its place as the official supplier to the Italian and French armed forces.
Equip yourself with a piece of paratrooper prestige. Embrace the 39-09 Combat Knife and carry forward a tradition of excellence.
Key Features
- Heritage-Inspired Design: Preserves the iconic 1939 paratrooper silhouette with modern enhancements
- Premium N690 Steel: Fast-cutting, corrosion-resistant blade hardened to 58 HRC
- Reinforced Spine: 6.3 mm thickness for prying, chipping, and unmatched durability
- Compact & Lightweight: 284 mm overall length and 306 g for effortless carry
- Ergonomic Grip: FORPRENE handle contours to your hand for fatigue-free use
- Versatile Sheath: Wear at the ankle or thigh for quick, customizable deployment
- Tactical Finish: MIL-C-13924 burnishing reduces glare and boosts stealth
Specifications
- Blade Length: 160 mm
- Total Length: 284 mm
- Blade Thickness: 6.3 mm
- Steel: BöHLER N690 (58 HRC)
- Grind: Flat
- Serration: 40 mm/1.6 in
- Handle: FORPRENE
- Weight: 306 g
Please check out other Extrema Ratio products.







