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 - RAO C Outdoor - Folding Knife - n690 - Heavy Duty Outdoor
The RAO C Outdoor is a heavy-duty folding knife designed by Extrema Ratio to ensure maximum strength, reliability and field versatility.
Derived from the renowned RAO II, this version keeps the solid RAO C structure while adopting features tailored to outdoor tasks. It includes a Böhler N690 stone washed blade, green cerakote aluminum handle, and a dual locking system for extra safety under heavy use.
Designed for advanced camping, operational bushcraft and demanding fieldwork, it offers an excellent balance of control, portability and consistent performance in natural settings.
Technical specs:
Intended use: advanced outdoor - bushcraft - operational camping
Country of origin: Made in Italy
Blade: Böhler N690 steel (58 HRC) – high corrosion resistance and edge stability
Blade finish: stone washed (reduced marks, easy maintenance)
Blade grind: flat
Handle: anodized Anticorodal aluminum with cerakote + dual steel frame
Blade length: 100 mm
Blade thickness: 4 mm
Overall length: 225 mm
Weight: approx. 236 g (Outdoor version)
Locking system: bar & pin lock with dual safety
Clip/Sheath: steel clip + Kydex sheath
Packaging: Extrema Ratio branded box, laser-cut RAO C gadget, outdoor Kydex sheath
Note: green handle with high-visibility paracord for fast retrievalER-RAO-C-O -
ExtremaRatio - RAO C - N690Co & Aluminum Tactical Grey - folding knife
Thanks to its structure, RAO C is a tool that despite its small size, manages to guarantee the same qualities of robustness and reliability as its big brother while offering better portability and manageability.
The locking mechanism on opening is particularly strong as it is assisted by a safety system that turns it into a true fixed blade. The primary safety on the blade is activated by raising and lowering the locking pin. To provide the user with maximum safety in use, a practical and quick secondary safety has been applied, which can be activated simply by moving the locking pin horizontally.
For the purpose of lightening the steel frames, a template was laser-cut from the profile of the RAO C, which was then used to make a gadget that is delivered with the knife.
Intended use: hiking/tactical
Type of production: industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Blade Finish: Burnishing MIL-C-13924
Handle: anticorodal anodized with hard oxidation
Blade length: 100mm.
Blade thickness: 4mm.
Length closed: 132mm.
Total length: 225mm.
Weight: 239g.
Closure: modified front lock, with push-button aditional safety.
Notes: keychain gadget, with miniature profile of the knifeER-RAOC-TG -
ExtremaRatio - RAO C - N690Co & Aluminum Black - folding knife
Thanks to its structure, RAO C is a tool that despite its small size, manages to guarantee the same qualities of robustness and reliability as its big brother while offering better portability and manageability.
The locking mechanism on opening is particularly strong as it is assisted by a safety system that turns it into a true fixed blade. The primary safety on the blade is activated by raising and lowering the locking pin. To provide the user with maximum safety in use, a practical and quick secondary safety has been applied, which can be activated simply by moving the locking pin horizontally.
For the purpose of lightening the steel frames, a template was laser-cut from the profile of the RAO C, which was then used to make a gadget that is delivered with the knife.
Intended use: hiking/tactical
Type of production: industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Blade Finish: Burnishing MIL-C-13924
Handle: anticorodal anodized with hard oxidation
Blade length: 100mm.
Blade thickness: 4mm.
Length closed: 132mm.
Total length: 225mm.
Weight: 239g.
Closure: modified front lock, with push-button aditional safety.
Notes: keychain gadget, with miniature profile of the knifeER-RAOC-BK -
ExtremaRatio - RAO II Expeditions - knife
Intended use: hiking / Survivalism
Type of production: industrial
Country of manufacture: Italy
Blade: stainless steel N690Co 58HRC
Blade treatment: Dark Stone
Handle: anticorodal of 4.5mm
Blade length: 115mm.
Blade thickness: 6.3mm.
Length closed: 142
Total length: 262mm.
Weight: 330g.
Closure: modified front lock - threaded safety pin
Sheath: tactical Nylon with M.O.L.L.E. attachments suitable for both closed and open knife
Notes: diamond sharpener and fire starter includedER-RAO-II-EX -
ExtremaRatio - RAO II - knife
Intended use: military / tactical
Type of production: industrial
Production Blade: Italy
Blade: Stainless steel 58HRC N690Co
Treatment Blade: Testudo MIL-C-13924
Handle: 4.5mm anti-corrosion
Blade length: 115mm.
Blade Thickness: 6.3mm.
Length closed: 142
Overall length: 262mm.
Balancing: -
Weight: 330g.
Closure: front lock changed - safety pin threaded
Clip: -
Sheath: tactical nylon with attacks M.O.L.L.E. suitable for both the knife closed and open
Notes: diamond sharpener includedER-RAO-II -
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 - 185° RAO Desert Warfare - knife
RAO ACQUIRED FROM VERSION ' AIR FORCE
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.
HISTORY ON THE DEPARTMENT :
The 185 ° RAO of the'' Thunderbolt '' and ' a department from the ancient tradition, but brand new . It was born April 3, 2000 following the reconfiguration of the 185 ° paratroopers land-based artillery regiment . Headquartered in Livorno, and ' a department atypical weapon of Artillery, currently placed in the basin of the Special Forces .
Composed entirely of volunteers , the 185 ° RAO selects its members through passing a physical test and a qualification course of modules '' in difficulty ' growing .'' The tasks assigned to the men of RAO are varied, but all delicate : it is to gather information on enemy targets and ' pass ' at his command . More 'in general , can' talk of '' reconnaissance '' in sensitive areas . '' E ' therefore obvious - underline the Army - that the activities ' of the buyer to occur mainly in hostile territory , in small groups acting on their own self-sufficient .''
The paratroopers of the RAO are specialists in the techniques of infiltration and exfiltration '' '' and are able to move into operational area '' up to 8-10 days without external supplies .'' '' They know how to evade capture , escape and escape from an ' area controlled by the enemy '' and, above all , as'' detect, determine and evaluate the objectives '' of strategic interest. Since 2002 , the year of reconfiguration , the detachments of the 185 th Regiment operated in all theaters of operation more ' hot : from the Balkans to Afghanistan, Iraq . Here performing reconnaissance especially for informational purposes in the medium and long-range surveillance of the area of responsibility ' of the Italian contingent .
Intended Use: Military / Tactical
Type of production : industrial
Production Blade: Italy
Blade: Stainless steel N690Co 58/60HRC Desert Warfare
Treatment Blade: GeoCamo
Handle : non corroding 4.5mm
Blade length: 118mm .
Blade Thickness: 6.3mm .
Length closed: 142
Total length: 261mm .
Balance: -
Weight: 335g .
Closure: front lock changed - safety pin threaded
Clip: -
Sheath: tactical nylon attacks by Vega Holster with MOLLE suitable for both closed and open the knife - colored desert
Notes: diamond sharpener includedER-RAO-DW -
ExtremaRatio - RAO C Folding Knife - Tactical Grey - PRIVATE COLLECTION - knife
PREVIOUSLY PURCHASED KNIFE, FROM A PRIVATE COLLECTION
* Origin: Acquired from a private seller, previously purchased
* Condition: Overall in excellent condition; opened and closed only a handful of times; never used for cutting
* Available on the market: Available
* Sharpening: Factory-sharpened
* Marks on blade: None
* Marks on handle: Minor marks on the handle’s anodized finish, near the release pins
* Box: Present and complete
* Sheath: /
* Manuals, Certificates, and Warranties: Present
* Inspected and Certified by our in-house laboratoryThe Extrema Ratio RAO C is a compact folding knife derived from the iconic RAO II.
Thanks to its design, the RAO C is a tool that, despite its small size, manages to guarantee the same robustness and reliability as its larger counterpart while offering improved portability and handling.
The handle consists of two finely crafted anodized aluminum scales, to which Extrema Ratio applies a hard-anodizing treatment, making the handle more resistant to wear and corrosion.
Two steel frames help increase the handle’s sturdiness to withstand the most demanding uses.
The opening lock mechanism is particularly durable, as it is supplemented by a safety system that transforms it into a true fixed blade. The primary safety on the blade is activated by lifting and lowering the locking pin. To ensure maximum safety for the user, a practical and quick secondary safety has been added, which can be activated simply by moving the locking pin horizontally.
The reversible clip is designed to allow for concealed carry in a pocket, making the knife invisible from the outside.
The blade is made of Böhler N690 steel, hardened to 58 HRC, with the classic Extrema Ratio MIL-C-13924 black finish.
To lighten the steel frames, a laser-cut template based on the RAO C profile was created, which was then used to make a gadget included with the knife.
Intended use: Hiking / Tactical
Production type: industrial
Country of manufacture: Italy
Blade: N690Co stainless steel 58HRC
Blade finish: MIL-C-13924 burnishing
Handle: hard-anodized anticorodal
Blade length: 100mm.
Blade thickness: 4mm.
Closed length: 132mm.
Overall length: 225mm.
Weight: 239g.
Closure: Modified front lock, with additional push-button safety
Notes: Keychain gadget, featuring a miniature profile of the knife—a previously purchased knife from a private collectionER-RAOC-TG-CP -
Cold Steel - AK-47 - Aluminium - 58LAK - knife
KNIFE RETRIEVED FROM A PRIVATE COLLECTION
* Origin: Retrieved from a private collector, previously purchased
* Condition: Generally good, never used
* Commercial availability: Out of production in this configuration
* Sharpening: Factory edge
* Blade marks: A slight “polishing” mark on the left side
* Handle marks: None
* Box: Present, not in like-new condition
* Sheath: -
* Manuals, Certificates and Warranty: -
* Inspected and Certified by our internal laboratoryAn iconic knife in Cold Steel’s production, known for its robustness and reliability. Compared to more recent versions, it stands out for the Ultra Lock™ blade locking system, which allows smoother opening than the more recently adopted Tri-Ad Lock™.
Intended use: Tactical / Military
Production type: Industrial
Blade: AUS-8A stainless steel
Blade finish: Tuff-Ex™, the specific name used by Cold Steel for its high-resistance Teflon-based coating
Blade manufacturing: Taiwan
Handle: Aluminum with Grivory insert
Blade length: 90 mm
Blade thickness: 3.5 mm
Closed length: 142 mm
Overall length: 232 mm
Balance: -
Weight: 198 g
Locking system: Ultra Lock™
Clip: Removable and reversible, stainless steel
Sheath: -
Notes: -CS58LAK-CP -
Spyderco - Yojimbo 2 - Satin CPM-SPY27 & Cobalt Blue G10 - C85GPCBL2 - knife
Designed by renowned self-defense expert Michael Janich, the Yojimbo™ 2 played a key role in popularizing the tactical Wharncliffe concept. In this elite version, the design is further enhanced by the use of CPM® SPY27®, Spyderco's exclusive steel developed with Crucible® powder metallurgy technology.
Its advanced formula combines elements such as vanadium, molybdenum, niobium, and nitrogen, enhanced by the presence of cobalt and the CPM process, to offer an extraordinary balance between edge retention, corrosion resistance, and toughness. These qualities maximize the sharp profile of the hollow-ground Wharncliffe blade, ensuring superior cutting performance.
The handle features skeletonized stainless steel liners embedded between textured peel-ply G-10 scales, which form the basis of the sturdy Compression Lock® and serve as an anchor for the four-position reversible clip (tip-up/tip-down, right/left side).
As with the other models in the prestigious CPM SPY27 line, this Yojimbo 2 also features the characteristic cobalt blue scales, a hallmark of the collection.
Intended use: Tactical / EDC
Type of production: Industrial
Country of production: USA
Blade: CPM-SPY27 stainless steel
Blade finish: Satin
Handle: G10 with stainless steel liners
Blade length: 3.15 inches (81 mm).
Blade thickness: 0.147 inches (3.7 mm).
Closed length: 4.5 inches (114 mm).
Overall length: 7.7 inches (195 mm).
Closed thickness: 11 mm.
Weight: 115 g.
Lock: Front Lock
Clip: multi-position, stainless steel, removable and reversible
Packaging: cardboard box with Spyderco logos
Notes: Design by Michael JanichC85GPCBL2 -
Acta Non Verba - A200 - Black DLC Sleipner - Black G-10 - knife
Being reliable isn't easy.
If you want to be taken seriously, you have to perform over and over again. The new A200 was born to do just that; thanks to its lightweight yet durable construction, you'll almost forget you have it. Being fully ambidextrous and super safe at all times, the new A200 is the perfect EDC for your every day adventures.
Intended Use: EDC / SportyProduction type: Industrial
Country of Production: Czech Republic
Blade: Sleipner steel 60HRC
Blade Finish: Black DLC
Handle: G-10 with spacers and red anodized aluminum opening pin
Blade length: 88mm.
Blade thickness: 3mm.
Total length: 210mm.
Weight: 81g.
Closing System: Ambidextrous A-Lock.
Clip: deep pocket, removable and reversible, flush, in Black DLC stainless steel
Package: Cardboard box with ANV logos
Notes: -ANV-A200-001 -
Spyderco - Yojumbo by Michael Janich - C253G - knife
Intended Use: Tactical / EDC
Production Type: Industrial
Country of Production: USA
Blade: Stainless steel CPM-S30V
Blade Treatment: Satin finish
Handle: G10 with embedded stainless steel liners
Blade length: 101mm.
Blade thickness: 3.7mm.
Length closed: 136mm.
Total length: 236mm.
Thickness when closed: 11mm.
Weight: 150g.
Closure: Front Lock
Clip: multi-position, stainless steel, removable and reversible
Package: cardboard box with Spyderco logos
Notes: Design by Michael JanichC253GP -
Spyderco - Canis by Kelly McCann - C248CF - knife
Kelly McCann is one of the world's foremost experts on counter-terrorism, counter-terrorism, close combat and all aspects of security. His decades of real-world operational experience are clearly reflected in the Canis, a no-frills folding knife optimized for personal protection.
Its extraordinary CPM® S30V® stainless steel blade combines a Wharncliffe style design with a reinforced tip and a central blade wedge to reduce weight and maximize cutting power.
The ergonomic handle features carbon fiber and G-10 scales with layered weft, drowned stainless steel liners, high-strength compression closure and a versatile four-position clip that supports all possible transport options.
Intended use: Tactical / EDCType of production: Industrial
Country of production: Taiwan
Blade: CPM-S30V stainless steel
Blade treatment: Satin finish
Handle: Carbon Fiber and G10 with liners embedded in stainless steel
Blade length: 87mm.
Blade thickness: 3mm.
Length closed: 120mm.
Total length: 206mm.
Thick when closed: 11mm.
Weight: 116g.
Closing: Front Lock
Clip: multi-position, stainless steel, removable and reversible
Packaging: cardboard box with Spyderco logos
Notes: Design by Kelly McCannC248CF -
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 -
Spyderco - Ouroboros by Paul Alexander - C207G - knife
Intended use: Utility / Hunting
Type of production: Industrial
Country of production: Seki - Japan
Blade: Stainless Steel VG-10
Blade treatment: Satin finish
Handle: G10 liners with embedded stainless steel
Blade length: 72mm.
Blade thickness: 2.5mm.
Closed Length: 106mm.
Overall length: 175mm.
Thick when closed: 10mm.
Weight: 102g.
Closure: Front Lock
Clip: reversible, stainless steel
Packaging: cardboard box with Spyderco logos
Notes: Design by Paul AlexanderSC207G -
Spyderco - Yojimbo 2 by Michael Janich - C85G2 - knife
Intended use: Tactical / EDC
Type of production: Industrial
Country of Origin: USA
Blade: CPM-S30V stainless steel
Blade treatment: Satin finish
Handle: G10 liners with embedded stainless steel
Blade length: 79mm.
Blade thickness: 4mm.
Closed Length: 114mm.
Overall length: 192mm.
Thick when closed: 11mm.
Weight: 113g.
Closure: Front Lock
Clip: multi, stainless steel, removable and reversible
Packaging: cardboard box with Spyderco logos
Notes: Design by Michael Janich12535 -
Cold Steel - AK-47 G-10 - 58LAKB - coltello
Destinazione d'uso: Tatticoo/Militare
Tipo di produzione: industriale
Lama: in acciaio inox AUS-8A
Trattamento Lama: Teflonatura
Produzione Lama: Taiwan
Manicatura: G-10 con liners in acciaio inox
Lunghezza lama: 90mm.
Spessore della lama: 3.5mm.
Lunghezza chiuso: 142mm.
Lunghezza totale: 232mm.
Bilanciatura: -
Peso: 184g.
Chiusura: Front Lock
Clip: amovibile e reversibile, in acciaio inox
Fodero: -
Note: -2537B

























