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Knives Catalog 2025
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8 Items

  1. 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 retrieval
    ER-RAO-C-O
    €292.62
    Only 1 left
    Only 1 left
  2. 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 knife

    ER-RAOC-TG
    €286.89
    Only 1 left
    Only 1 left
    Rating:
    100%
    5
  3. 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 knife

    ER-RAOC-BK
    €286.89
    Only 1 left
    Only 1 left
  4. 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 included

    ER-RAO-II-EX
    €388.52
    Only 1 left
    Only 1 left
    Rating:
    93%
    4.7
  5. 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 included

    ER-RAO-II
    €364.75
    Only 1 left
    Only 1 left
    Rating:
    84%
    4.2
  6. 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 laboratory

     

    The 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 collection

    ER-RAOC-TG-CP
    €0.00
    Only 0 left
    Only 0 left
    Out of stock
  7. Chris Reeve - Ti-Lock Stone Washed - NOS Full Set - PRIVATE COLLECTION - folding knife

    NOS FULL SET KNIFE, NEW FROM STOCK
    * Type: 2001 NOS new old stock - New from stock.
    * Condition: Like new, never taken out of original packaging.
    * Commercially available Out of production
    * Sharpening: Factory
    * Marks on blade: No
    * Marks on handle: No
    * Box: Present
    * Scabbard: -
    * Manuals, Certificates and Warranties: Present
    * Checked and Certified by our in-house laboratory.



    The Ti-Lock mechanism was originally designed to isolate the locking mechanism from the handle of the knife so that it can offer greater freedom of design. Totally ambidextrous, the Ti-Lock is not meant to be a mere exercise in style, but should be understood as a mechanical innovation and a solid and reliable testament to the passion of Chris Reeve and Grant and Gavin Hawk.

    Intended Use: Sporting/Collection

    Type of production: Semi-manufactured
    Country of Production: USA
    Blade: CPM-S35VN 58/59HRC stainless steel
    Blade Treatment: Stonewashed
    Handle: Titanium 6AI4V Stone Washed
    Blade Length: 82.5mm.
    Blade Thickness: 3.2mm.
    Length closed: 100mm.
    Total length: 182.5mm.
    Weight: 85g.
    Closure: Ti-Lock titanium 6AI4V
    Clip: Titanium 6AI4V
    Packaging: Cardboard box with Chris Reeve logos, certificates
    Notes: Design by Grant and Gavin Hawk - NOS knife, new from stock - Includes box and certificates

    CR-TILSW-CP
    €0.00
    Only 0 left
    Only 0 left
    Out of stock
  8. 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 Alexander

    SC207G
    €229.51
    Out of stock
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8 Items

Sports, Outdoor, Tactical, and Collectible Knives: The Collini Selection

For over 50 years, Coltelleria Collini has been a reference point in Italy for the world of specialized cutlery. Since 1968, we have been selecting sports, outdoor, professional, and collectible knives, collaborating exclusively with official brands, historical manufacturers, and master artisans.

In this category, you will find thousands of original knives, chosen for demanding collectors, EDC, outdoor, and bushcraft enthusiasts, as well as professional operators who require reliability, quality materials, and consistent performance over time.

Military & Tactical Knives

Knives designed for heavy-duty and professional use, where robustness and reliability are paramount. We select world-leading brands such as Extrema Ratio, Zero Tolerance, Ka-Bar, and Cold Steel. Fixed and folding blades developed to withstand extreme conditions.

Sports & Outdoor Knives

From trekking to hiking, from bushcraft to everyday carry (EDC). Discover the Italian excellence of Fox Knives and LionSteel, the Nordic solidity of Fallkniven, and great classics like Opinel and Spyderco.

Collectible & Rare Knives

Custom, vintage, limited edition, and discontinued knives. Through our Approved program, we acquire, evaluate, and certify private collections, offering our customers access to rare, display, and investment-grade blades.

Why choose Coltelleria Collini since 1968

We are not just an e-commerce site, but a historic cutlery shop with direct experience on the products we offer. Buying from us guarantees:

  • Certified Originality: we are official dealers for all brands we carry.
  • Real Stock with fast shipping.
  • Qualified Assistance and technical advice before and after sales.

Knives Catalog PDF Want to know more? Download the Knives Catalog for free (PDF)

Knives FAQ

What is the best knife brand?

There is no absolute "best" brand, but specific leaders for each use. For tactical and professional use, Extrema Ratio and Zero Tolerance are top tier. For outdoor and EDC, Fox, LionSteel, Fallkniven, and Spyderco excel.

Is it legal to buy sports knives online?

Yes, buying sports and collectible knives online is generally legal for adults. However, laws regarding carrying and transporting knives in public vary significantly by country. Always check your local regulations.