The RAO C Outdoor adapts Extrema Ratio’s RAO C philosophy to a field-oriented configuration: a compact, robust folding tool built to work under load. It features a Böhler N690 blade hardened to 58 HRC with a stone-washed/satin finish chosen for durability and low maintenance; the handle combines anodized anticorodal aluminium with Cerakote finish and dual steel liners for enhanced structural rigidity.

With a 4 mm blade thickness and flat grind, the geometry delivers solid strength and reliable edge stability for demanding outdoor tasks. The locking system is engineered for high robustness: a primary and secondary safety stabilise the blade when open, giving the folder a fixed-blade-like behaviour under heavy use. The knife is supplied with a Kydex sheath designed for secure open-carry — practical where quick access and weather resistance are priorities.

Concluding sentence: a field-ready heavy-duty folder that balances rugged construction, practical finishes and dependable carry options — well suited for bushcraft, advanced camping and professional outdoor use.

Technical features & specifications

Weight: 236 g (8.32 oz)

Blade length: 100 mm (3.93 in)

Overall length: 225 mm (8.85 in)

Blade thickness: 4 mm (0.15 in)

Blade material: Böhler N690 steel, hardened to 58 HRC

Blade finish: satin / stone washed (Outdoor version)

Grind: flat / plain edge

Handle material: anticorodal anodized aluminium with Cerakote finish; dual steel liners

Locking system: reinforced closure mechanism with primary and secondary safety (stabilises blade in open position)

Carry: Kydex sheath configured for secure open-carry; modular mounting options

Package contents

1 × RAO C Outdoor folding knife

1 × Kydex sheath (open-carry configuration)

Warnings & maintenance (GPSR compliant)

Use only for lawful outdoor and utility tasks; verify local laws regarding possession and transport of knives.

Do not tamper with the blade, locking mechanism or sheath; unauthorized modifications may impair safety, performance and legal compliance.

Store the knife dry, away from heat and humidity; keep in the sheath when not in use.

Keep out of reach of children.

Blade care: dry and clean after use; apply a light protective oil film to metal surfaces to prevent corrosion; use appropriate tools and skills for sharpening.

Mechanical care: periodically check screws, pivots and locking integrity; servicing or structural repairs must be done by qualified technicians.

Kydex sheath: clean with a damp cloth; inspect mounting and retention regularly to ensure secure carry.

These warnings comply with the General Product Safety Regulation (GPSR) and applicable Italian law.