Knife - Essential Tool for Camping, Outdoor Adventure and collection
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ExtremaRatio - 185° RAO knife - PRIVATE COLLECTION - Knife
PREVIOUSLY PURCHASED KNIFE, PRIVATE COLLECTION
* Origin: acquired from private owner - SERIAL CK0191S - produced in 2021
* Condition: overall very good condition (see photos)
* Market availability: no longer in production in this unit-marked version
* Sharpening: factory edge
* Blade marks: none
* Handle marks: none
* Box: present, slightly damaged
* Sheath: included
* Manuals, certificates and warranty: included
* Checked and certified by our internal laboratory
Folding knife made according to specifications requested by the Italian Army unit 185th RAO (Regiment for Target Acquisition) and currently in service with the same unit. The service version differs from the civilian one only by the complete absence of writings or logos on the blade.
HISTORICAL NOTES ON THE UNIT:
The 185th RAO of the "Folgore" is a unit with ancient traditions, yet relatively new in its current form. It was established on 3 April 2000 following the reorganization of the 185th Paratroopers Artillery Regiment. Based in Livorno, it is an atypical artillery unit currently included within the Special Forces framework.
Composed entirely of volunteer personnel, the 185th RAO selects its members through physical tests and a qualification course structured in modules of increasing difficulty. The tasks assigned to RAO operators are numerous and highly sensitive: they involve gathering information on enemy targets and relaying it to command. More generally, this can be described as reconnaissance in sensitive areas.
"It is therefore clear," the Army emphasizes, "that the activity of the acquisition operator takes place mainly in hostile territory, in small self-sufficient teams operating in isolation."
RAO paratroopers are specialists in infiltration and exfiltration techniques and are able to operate in the field for up to 8–10 days without external resupply. They know how to avoid capture, escape and evade from enemy-controlled areas and, above all, how to identify, define and assess strategically relevant targets. Since 2002, the year of its reorganization, detachments of the 185th Regiment have operated in all major operational theaters: from the Balkans to Afghanistan and Iraq. In these areas they mainly carry out medium- and long-range reconnaissance and surveillance activities within the area of responsibility of the Italian contingent.
Intended use: military/tactical
Type of production: industrial
Blade production: Italy
Blade: N690Co stainless steel 58/60HRC
Blade treatment: MIL-C 13924 black coating
Handle: anodized anticorodal aluminum 4.5mm
Blade length: 118mm
Blade thickness: 6.3mm
Closed length: 142mm
Total length: 261mm
Weight: 335g
Lock: modified front lock with additional threaded safety pin
Clip: none
Sheath: tactical nylon MOLLE-compatible, suitable for both closed and open knife use
Notes: diamond pocket sharpener includedER-RAO-BK-CP -
ExtremaRatio - Mamba Wolf Gray - tactical knife
A compact and compact multi-role knife with ABS fast release sheath with two multiposition clips and tight enough to be secured inside the passers-through of the M.O.L.L.E. - Available in four color variants: Black, Desert, Ranger Green and HCS (Hybrid Coyote Sage)
Intended use: tactical / multi role
Type of production: industrial
Country of production: Italy
Blade: N690Co stainless steel hardened to 58HRC
Blade Treatment: Satin
Handle: Forprene
Blade Length: 116mm.
Blade thickness: 4mm.
Total Length: 237mm.
Weight: 85g.
Sheath: in ABS with two multiposition clips, designed for type M.O.L.L.E.
Packing: Cardboard box with Extrema Ratio logos
Notes: -ER-MAM-WG -
ExtremaRatio - Mamba Black - tactical knife
A compact and compact multi-role knife with ABS fast release sheath with two multiposition clips and tight enough to be secured inside the passers-through of the M.O.L.L.E. - Available in four color variants: Black, Desert, Ranger Green and HCS (Hybrid Coyote Sage)
Intended use: tactical / multi role
Type of production: industrial
Country of production: Italy
Blade: N690Co stainless steel hardened to 58HRC
Blade Treatment: MIL-C-13924 PVD
Handle: Forprene
Blade Length: 116mm.
Blade thickness: 4mm.
Total Length: 237mm.
Weight: 85g.
Sheath: in ABS with two multiposition clips, designed for type M.O.L.L.E.
Packing: Cardboard box with Extrema Ratio logos
Notes: -ER-MAM-BK -
ExtremaRatio - Mamba Ranger Green - tactical knife
A compact and compact multi-role knife with ABS fast release sheath with two multiposition clips and tight enough to be secured inside the passers-through of the M.O.L.L.E. - Available in four color variants: Black, Desert, Ranger Green and HCS (Hybrid Coyote Sage)
Intended use: tactical / multi role
Type of production: industrial
Country of production: Italy
Blade: N690Co stainless steel hardened to 58HRC
Blade Treatment: Satin
Handle: Forprene
Blade Length: 116mm.
Blade thickness: 4mm.
Total Length: 237mm.
Weight: 85g.
Sheath: in ABS with two multiposition clips, designed for type M.O.L.L.E.
Packing: Cardboard box with Extrema Ratio logos
Notes: -ER-MAM-RG -
ExtremaRatio - Mamba HCS - tactical knife
A compact and compact multi-role knife with ABS fast release sheath with two multiposition clips and tight enough to be secured inside the passers-through of the M.O.L.L.E. - Available in four color variants: Black, Desert, Ranger Green and HCS (Hybrid Coyote Sage)
Intended use: tactical / multi role
Type of production: industrial
Country of production: Italy
Blade: N690Co stainless steel hardened to 58HRC
Blade Treatment: Satin
Handle: Forprene
Blade Length: 116mm.
Blade thickness: 4mm.
Total Length: 237mm.
Weight: 85g.
Sheath: in ABS with two multiposition clips, designed for type M.O.L.L.E.
Packing: Cardboard box with Extrema Ratio logos
Notes: -ER-MAM-HC -
ExtremaRatio - Mamba Desert - tactical knife
A compact and compact multi-role knife with ABS fast release sheath with two multiposition clips and tight enough to be secured inside the passers-through of the M.O.L.L.E. - Available in four color variants: Black, Desert, Ranger Green and HCS (Hybrid Coyote Sage)
Intended use: tactical / multi role
Type of production: industrial
Country of production: Italy
Blade: N690Co stainless steel hardened to 58HRC
Blade Treatment: Satin
Handle: Forprene
Blade Length: 116mm.
Blade thickness: 4mm.
Total Length: 237mm.
Weight: 85g.
Sheath: in ABS with two multiposition clips, designed for type M.O.L.L.E.
Packing: Cardboard box with Extrema Ratio logos
Notes: -ER-MAM-DE -
ExtremaRatio - 185° RAO - 2018 Version - heavy folding knife
New version 2018 with improved grip: uses the same handle as the RAO II model
Folding knife made to specific requests of the Italian Army department 185 ° RAO (Regiment Acquisition Objectives) and currently supplied to the homonymous department. The supplied knife differs from the civil one only because of the total lack of writing or logos on the blade.
HISTORICAL SUMS ON THE DEPARTMENT:
The 185 ° RAO of the '' Folgore '' is a department with an ancient tradition, but very new. In fact, it was born on April 3, 2000 following the reconfiguration of the 185th terrestrial paratroop artillery regiment. Based in Livorno, it is an atypical department of the artillery weapon, currently inserted in the Special Forces basin.Entirely composed of voluntary personnel, the 185th RAO selects its components through the passing of a physical test and a qualification course on modules '' with increasing difficulty ''. The tasks entrusted to the RAO's men are many, but all very delicate: it is about gathering information on enemy objectives and 'passing them' to one's command. More generally, it can talk about '' recognition in sensitive areas ''. '' It is therefore evident - they stress to the Army - that the activity of the acquirer takes place mainly in hostile territory, in small self-sufficient nuclei that act in isolation ''.
RAO paratroopers are specialists in '' infiltration and exfiltration '' techniques and are able to move in the operating area '' for up to 8-10 days without external supplies ''. They know how to 'escape from capture, escape and escape from an' enemy controlled area '' and, above all, as '' identify, determine and evaluate objectives '' of strategic interest. Since 2002, the year of reconfiguration, the 185th Regiment detachments have operated in all the hottest operational theaters: from the Balkans to Afghanistan, to Iraq. Here they mainly carry out surveys for medium and long-range information purposes and for monitoring the area of responsibility of the Italian contingent.
Destination of use: military / tactical
Type of production: industrial
Lama production: Italy
Blade: stainless steel N690Co 58 / 60HRC
Blade treatment: burnishing MIL-C 13924
Handle: 4.5mm anticorodal aluminum anodized
Blade length: 118mm.
Blade thickness: 6.3mm.
Length closed: 142mm.
Total length: 261mm.
Weight: 335g.
Closure: modified front lock with additional threaded security pin
Clip: absent
Sheath: tactical Nylon compatible M.O.L.L.E. suitable both for the closed and open knife
Notes: diamond pocket sharpener includedER-RAO-BK -
ExtremaRatio - BFK Zero Folgore - Stonewashed VG-10 & Black Anticorodal - knife
The BFK Zero FOLGORE is an operational EDC project developed in collaboration with the “Folgore” Parachute Brigade, designed for continuous professional use where there is no room for error and every component must perform predictably.
The 3mm VG10 stainless steel blade is engineered to offer a true balance between edge retention, durability, and control, without unnecessary extremes. It features a geometry geared toward intensive daily use, designed to perform rather than be preserved. The construction combines an aluminum handle with steel liners, creating a rigid frame with tight tolerances and consistent mechanical response even under stress.
The Crossbar Lock system ensures safety and reliability at every stage of operation, while maintaining fully ambidextrous handling. Internal bearings ensure a smooth, repeatable opening action, free of jamming, designed to feel natural even without active attention.
The ergonomics are designed for extended carry: the compact profile reduces bulk without compromising the grip, while the ambidextrous clip allows for discreet and customizable carry. The weight remains low for the category, with a balanced distribution that does not feel fragile.
The BFK Zero FOLGORE is a military folding knife conceived as a professional everyday carry tool. It is not designed to be displayed, but to be used. Compact, reliable, efficient
Intended use: Tactical / EDC
Production type: Industrial
Country of manufacture: Italy
Blade: VG-10 stainless steel
Blade finish: Stonewashed with Folgore engraving
Handle: Anticorodal aluminum alloy
Blade length: 71mm.
Blade thickness: 2.5 mm.
Closed length: 99 mm.
Overall length: 166 mm.
Weight: 84 g.
Closure: Crossbar Lock
Clip: stainless steel, deep pocket style; reversible, removable, with custom engravings
Notes: Product manufactured under official licenses from the Italian ArmyER-BFK-ZEROF -
ExtremaRatio - BFK EVO - The Carry Box - 500pcs Limited Edition - folding knife
LIMITED EDITION CARRY BOX
– BFK EVO Limited Edition
The BFK EVO is a compact folding knife designed as Extrema Ratio's flagship product for the EDC world. Produced in a limited series of 500 pieces, it is available exclusively in THE CARRY BOX. Extrema Ratio's build quality is evident in every detail: mechanical precision, selected materials, proven ergonomics, ease of handling, concealability, quick opening, and the proverbial reliability that has distinguished the brand for over 30 years. From the very first glance, it conveys a feeling of uncompromising strength and solidity.Main features:
* Nitrogen steel blade with Tanto profile and reinforced tip, stone-washed finish.
* Black anodized aluminum scales, sturdy and compact for easy everyday carry.
* Crossbar lock for exceptional safety.
* Bearing system that guarantees quick, smooth, and natural opening.
* Customized lanyard on the tang for immediate extraction and improved grip.
* Dedicated laser engraving on the blade and clip that identifies the limited series.BFK EVO is not an object to be shown off: it is a tool designed to be carried every day.
Intended use: EDC / Sports
Type of production: industrial
Country of production: Italy
Blade: Nitrogen stainless steel
Blade finish: Stonewashed with custom engravings
Handle: Anticorodal aluminum alloy
Blade length: 71mm.
Blade thickness: 2.5mm.
Closed length: 99mm.
Total length: 166mm.
Weight: 84g.
Locking Mechanism: Crossbar Lock
Clip: stainless steel, deep pocket type; reversible, removable, with custom engravings
Notes: Limited edition, numbered to only 500 pieces worldwide - Knife available for purchase only on this occasion and together with the Carry Box– Extrema Ratio Essential Cap
Baseball cap with an elegant, urban design. Made of sturdy, breathable fabric, it features a silicone patch with the Extrema Ratio logo, an instantly recognizable symbol of belonging.– Leather Zip Wallet
Black leather wallet with three-sided zipper closure and lanyard hook, ideal for preventing accidental loss. Designed to hold everything you need (cards, bills, etc.), it is a durable and reliable accessory, perfect for everyday use.– Carbon Fiber Card
Compact carbon fiber tool with a sharp lower edge, useful in emergency or self-defense situations. It is the size of a credit card and fits into the Extrema Ratio wallet. A side recess facilitates proper grip for maximum effectiveness.ER-CARRYB -
CRKT - Carson M16 Fixed Veff Serrations - M16-13FX - knife
Intended use: Tactical / Military
Type of production: Industrial
Country of production: China
Blade: full tang in SK-5 carbon steel
Blade treatment: powder coated
Handle: G10
Blade length: 117mm.
Blade thickness: 4mm.
Total length: 238mm.
Weight: 130g.
Sheath: FRN with belt or neck loop
Packaging: cardboard box with CRKT logos
Notes: Design by Kit CarsonCM16-13FX -
ExtremaRatio - Scout 2 Satin - knife
Intended use: Hiking / Backup
Type of production: Industrial
Country of production: Italy
Blade: Stainless Steel Bohler N690Co at 58HRC
Blade Treatment: Satin
Handle: Forprene
Blade Length: 118mm.
Blade thickness: 5mm.
Total Length: 232mm.
Weight: 145g.
Sheath: Kydex, compatible with M.O.L.L.E.
Packing: Cardboard box with Extrema Ratio logos12659 -
ExtremaRatio - Scout 2 Black - knife
Intended use: Hiking / Backup
Type of production: Industrial
Country of production: Italy
Blade: Stainless Steel Bohler N690Co at 58HRC
Blade Treatment: Brush MIL-C-13924
Handle: Forprene
Blade Length: 118mm.
Blade thickness: 5mm.
Total Length: 232mm.
Weight: 145g.
Sheath: In Kydex, compatible with M.O.L.L.E.
Packing: Cardboard box with Extrema Ratio logos12658 -
ExtremaRatio - 185 ° RAO in Sanmai Japanese steel - knife
Folding knife made upon specific requests of the department of the Italian Army 185 ° RAO ( Target Acquisition Regiment ) and is now included the eponymous department . The knife supplied differs from the calendar for the total lack of writings or logos on the blade.
Limited Edition RAO model characterized by a satin blade in Japanese rolled steel produced by Takefu Steel. to the central plate and the 420J2 (56 HRC) In the specific CoS it is used to 61,5HRC (Cobalt Special deemed superior mechanically by 25% compared to the already appreciated VG10) for the two side plates, in order to have a very high capacity cutting but at the same time a remarkable resilience and resistance to oxidation.
folding knife made upon specific requests of the Italian Department of the Army 185th RAO (Regiment Acquisition Objectives) and currently supplied to the homonymous department. The knife supplied differs from that only civil to the total lack of written or logos on the blade.
Intended Use: Military / TacticalType of production: Industrial
Production Lama: Italy
Blade: (San Mai) Japanese-rolled stainless steel with sharp CoS to 61,5HRC in cryogenic tempering
Lama Treatment: Testudo
Handle material: anticorodal 4.5mm
Blade length: 118mm.
Blade Thickness: 6.3mm.
Length closed: 142
Overall length: 261mm.
Balancing: -
Weight: 335g.
Closure: front modified lock - threaded safety pin
Clip: -
Sheath: tactical nylon by Vega with M.O.L.L.E. attacks suitable for both the closed knife that open - color BLACK
Notes: sharpening the included DiamondRAO-SANMAI -
Boker Magnum - Survivor - 02RY7085 - knife
Intended use: Sport
Type of production: Industrial
Production Lama: China
Blade: stainless steel 420
Treatment Lama: -
Handle material: Leather Brown
Blade length: 12mm.
Blade thickness: 6mm.
Length closed: -
Total length: 2300mm.
Thick when closed: -
Balance: -
Weight: 194g.
Closing: -
Clip: -
Sheath: Leather Brown
Packaging: Cardboard box with logos Boker Plus
Notes: -BO-02RY7085 -
Gerber - Prodigy Tanto Urban Camo 0558 - coltello
Destinazione d'uso: Militare
Tipo di produzione: industriale
Lama: in acciaio inox 12C27 punta tanto
Trattamento Lama: TiNi - Nitrurazione al Titanio
Produzione Lama: USA
Manicatura: antiscivolo in fiberglass e nylon
Lunghezza lama: 120mm.
Spessore della lama: 4mm.
Lunghezza chiuso: -
Lunghezza totale: 245mm.
Bilanciatura: arretrata di 1cm.
Peso: 205g.
Fodero: in Nylon e polimeri antiscivolo fire retardant, camo
Note: Skullcrasher/Martello4616T






















