Sport, Military and Collectible Knives | Coltelleria Collini
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Extrema Ratio - Tuscan Knife - Black S600 64HRC & Green G10 - Knife
The Tuscan S600 Black by Extrema Ratio is a high-end tactical knife designed to deliver outstanding performance in complex operational scenarios. Crafted from Böhler S600 steel, cryogenically tempered to 64 HRC, it provides unparalleled hardness and wear resistance, ensuring a sharp cutting edge for longer. The EXP DARK finish protects the blade from oxidation, making it more durable even in extreme environmental conditions.
The lightweight full tang construction optimizes the knife’s balance, shifting the weight toward the tip to maximize efficiency in chopping and batoning operations. The handle, made of G10 with ergonomic scales, ensures a firm and comfortable grip, both with gloves and bare hands. The green Cordura sheath, M.O.L.L.E compatible, guarantees versatile and secure transport.
Designed for tactical and military use, the Tuscan S600 Black is the ideal companion for professional operators and survival and bushcraft enthusiasts looking for a reliable, durable, and high-performance knife.
Intended use: Tactical / Military
Production type: Industrial
Country of manufacture: Italy
Blade: Full tang, Böhler S600 steel (64 HRC)
Blade finish: EXP DARK (MIL-C-13924 coating)
Handle: G10, ergonomic with Extrema Ratio design
Blade length: 167mm
Blade thickness: 6mm
Overall length: 306mm
Weight: 449g
Locking mechanism: -
Clip: -
Sheath: Cordura, MOLLE compatible, with thigh strap
Packaging: Cardboard box with Extrema Ratio logos
Additional notes: Tang can be used as a glass breakerER-TUS-S600B€392.62Only 99 leftOnly 99 left
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ExtremaRatio - Ontos II S600 Black - Exp Dark S600 & Green Forprene - knife
If you're looking for a reliable companion for your outdoor adventures, the ONTOS II fixed blade knife is the choice for you. Perfect for those who enjoy camping, hiking, and hiking, this knife is designed to offer the perfect balance of light weight, durability, and exceptional performance. Its name, inspired by the Greek word “ontos,” meaning “the essence,” embodies the perfect blend of strength and versatility. With a forprene handle designed to provide a secure and comfortable grip, ONTOS II allows you to work with precision even in the most difficult conditions, offering total control even when the weather is inclement.
The full flat blade is designed for a precise, deep cut, ensuring high performance and durability. Its well-balanced construction allows you to tackle any task, whether it's cutting wood, thin branches, paracord or ropes. ONTOS II will never let you down, offering reliability and consistent performance in any situation.
The ONTOS II S600 Black is the ideal choice for those seeking exceptional performance and unparalleled wear resistance. With its vibrant green-colored handle, it stands out not only for its aesthetics, but also for the quality of the materials used. Made of Böhler S600 steel, a top-grade material used in the production of metalworking tools, this tool is cryogenically treated to ensure an extraordinary hardness of 64 HRC. The Teflon-based “EXP DARK” coating, developed by Extrema Ratio, further enhances its durability and performance. Complemented by a green thigh scabbard with M.O.L.L.E. system, the ONTOS II S600 Black is ready to be easily integrated into your gear, ensuring practicality and durability in any situation.
Intended Use: Heavy Utility / Hiking
Production type: Industrial
Country of manufacture: Italy
Blade: S600 steel at 64HRC
Surface treatment: Exp Dark
Handle: Forprene
Blade length: 167mm.
Blade thickness: 6mm.
Total length: 299mm.
Balance: advanced
Weight: 344g.
Sheath: nylon, MOLLE compatible
Packaging: cardboard box with Extrema Ratio logos
Notes: blade made of high carbon steel, always keep well cleaned and oiled during storage to prevent rust and oxidationER-ON2-S600€376.23Only 1 leftOnly 1 left -
ExtremaRatio - Ontos II Expeditions - Stonewashed N690Co & Desert Forprene - knife
If you're looking for a reliable companion for your outdoor adventures, the ONTOS II fixed blade knife is the choice for you. Perfect for those who enjoy camping, hiking, and trekking, this knife is designed to offer the perfect balance of light weight, durability, and exceptional performance. Its name, inspired by the Greek word “ontos,” meaning “the essence,” embodies the perfect blend of strength and versatility. With a forprene handle designed to provide a secure and comfortable grip, ONTOS II allows you to work with precision in even the most difficult conditions, offering total control even when the weather is inclement.
The full flat blade is designed for a precise, deep cut, ensuring high performance and durability. Its well-balanced construction allows you to tackle any task, whether it's cutting wood, thin branches, paracord or ropes. ONTOS II will never let you down, offering reliability and consistent performance in any situation.
The ONTOS II Expeditions version is designed for those who demand the ultimate in performance and reliability. The knife features a desert-colored handle and is made of Böhler N690 steel, treated to 58 HRC with a stone-washed finish and MIL-C-13924 burnishing to ensure optimal strength, long edge life and protection against oxidation. It comes with a desert Cordura scabbard with MOLLE system, which includes a mini pouch with a flammable paracord lanyard for emergencies and a Firesteel for lighting fires, so you're always ready even in the most critical situations.
With ONTOS II, every adventure will be supported by a knife that combines superior performance, functionality and durability, making you feel ready to face any challenge.
Intended Use: Heavy Utility / Hiking
Production Type: Industrial
Country of manufacture: Italy
Blade: N690Co 58HRC stainless steel
Surface Treatment: Burnishing MIL-C-13924 Stone Washed
Handle: Forprene
Blade Length: 167mm.
Blade thickness: 6mm.
Total length: 299mm.
Balance: advanced
Weight: 311g.
Sheath: nylon, MOLLE compatible, with detachable front sheath
Packaging: cardboard box with Extrema Ratio logos.
Notes: includes a firesteel (tinder) and a firecord (flammable paracord thread) for lighting emergency firesER-ON2-EX€364.75Only 1 leftOnly 1 left -
ExtremaRatio - Tuscan - Black N690Co & Green G10 - Knife
Tuscan is a multi-role knife dedicated to Tuscany, a region known for its landscapes, cities of art and strategic military relevance. This knife is designed to adapt to different operational contexts, from tactical military theaters to urban operations, due to its versatility and maneuverability. The full tang blade made of BOHLER N690 steel (58 HRC) is lightened and balanced to facilitate chopping and batoning operations, while the sharpness remains uniform along the entire length. The ergonomic G10 handle allows comfortable use with both standard and reverse grip, with or without gloves. Ambidextrous Cordura sheath with M.O.L.L.E system and thigh strap allows easy carrying on tactical vests and belts. Tuscan is ideal for use in outdoor, survival and bushcraft environments, confirming its versatility in multiple operational situations.
Intended Use: Tactical/MilitaryProduction type: Industrial
Country of production: Italy
Blade: full tang, in Bohler N690Co stainless steel at 58HRC
Blade treatment: Burnishing MIL-C-13924
Handle: G10
Blade length: 167mm.
Blade thickness: 6mm.
Total length: 306mm.
Weight: 437.5g.
Sheath: cordura, belt-mounted, MOLLE compatible
Packaging: cardboard box with Extrema Ratio logos.ER-TUS-GB€337.70Only 2 leftOnly 2 left -
ExtremaRatio - Tuscan Knife - Satin N690Co & Black G10 - Knife
Tuscan is a multi-role knife dedicated to Tuscany, a region known for its landscapes, cities of art and strategic military relevance. This knife is designed to adapt to different operational contexts, from tactical military theaters to urban operations, due to its versatility and maneuverability. The full tang blade made of BOHLER N690 steel (58 HRC) is lightened and balanced to facilitate chopping and batoning operations, while the sharpness remains uniform along the entire length. The ergonomic G10 handle allows comfortable use with both standard and reverse grip, with or without gloves. Ambidextrous Cordura sheath with M.O.L.L.E system and thigh strap allows easy carrying on tactical vests and belts. Tuscan is ideal for use in outdoor, survival and bushcraft environments, confirming its versatility in multiple operational situations.
Intended Use: Tactical/MilitaryProduction type: Industrial
Country of production: Italy
Blade: full tang, in Bohler N690Co stainless steel at 58HRC
Blade treatment: Satin finish
Handle: G10
Blade length: 167mm.
Blade thickness: 6mm.
Total length: 306mm.
Weight: 437.5g.
Sheath: cordura, belt-mounted, MOLLE compatible
Packaging: cardboard box with Extrema Ratio logos.ER-TUS-BS€347.54Only 1 leftOnly 1 left -
Mcusta - Tanto Custom Limited Edition Series - SPG2/R-2 Laminated Damascus & Stingray Leather - MC-0241GD - knife
Discover the new Mcusta Damascus Tanto: a knife that combines the timeless elegance of traditional Japanese blades with top-tier modern performance.
Crafted from SPG-2 Powdered High Speed Tool Steel, it offers exceptional sharpness and superior edge retention. The Damascus blade, with a matte gray finish and hammered texture (tsuchime), immediately catches the eye and evokes authentic Japanese craftsmanship.
The handle, inspired by classic Japanese swords, is made of genuine stingray leather covered in black leather with a tsuka-maki-style wrap: a choice that blends tradition and innovation, ensuring a secure, stable, and comfortable grip. The full-tang construction guarantees strength and durability, while the perfect balance gives you total control in every use.
It is not just a knife, but a true piece of character, where precision and the samurai spirit meet.
Intended use: Collectible / Sport
Production type: industrial
Blade: full tang in laminated Damascus steel, with a central core of SPG2 at 61/62 HRC and outer layers of R-2
Blade finish: hammered (Tsuchime)
Country of manufacture: Japan
Handle: genuine stingray leather (Samekawa) grip with Tsuka-Maki leather wrapping (Tsuka-Gawa)
Blade length: 160mm.
Blade thickness: 4.2 mm.
Overall length: 285 mm.
Weight: 215 g.
Sheath: leather, belt-mounted, for vertical carry
Packaging: box made of Paulownia wood, with manufacturer’s logos
Notes: -MC-0241GD€405.74Only 0 leftOnly 0 left
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ExtremaRatio - Ontos - Black N690Co & Forprene - USED / PRIVATE COLLECTION - knife
KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Origin: Withdrawn from a private collection, previously purchased and used
* Condition: Overall in good condition, with superficial cosmetic marks on the blade due to actual use, which in no way compromise its functionality and use
* Available on the market: On the market
* Sharpening: Resharpened
* Marks on blade: Several superficial cosmetic marks on the burnishing
* Marks on handle: None
* Box: Present and complete
* Sheath: Present and in excellent condition
* Manuals, certificates, and warranties: Present
* Checked and certified by our in-house laboratory
Born from the growing demand of demanding professionals, Extrema Ratio presents ONTOS—a field knife designed to tackle any challenge. The name, derived from the Greek word for “the thing,” represents the perfect synthesis of strength, versatility, and reliability. Compact but extremely durable, ONTOS is the ideal companion in any situation, thanks to its partially serrated blade that always guarantees a sharp, ready-to-use cut.Its nylon thigh sheath, equipped with the MOLLE system, is designed to remain firmly anchored even in the most difficult conditions, when the soldier is forced to give up his primary tactical equipment. And for those looking for an extra level of preparedness, a survival kit is available, sold separately, to be attached directly to the knife sheath.
Intended use: Heavy UtilityType of production: Industrial
Country of production: Italy
Blade: N690Co 58HRC stainless steel
Surface treatment: MIL-C-13924 burnishing
Handle: Forprene
Blade length: 168mm.
Blade thickness: 6.3mm.
Total length: 299 mm.
Balance: advanced
Weight: 411 g.
Sheath: nylon thigh sheath, modular, compatible with M.O.L.L.E. systems.
Packaging: Cardboard box with Extrema Ratio logos
Notes: knife previously purchased and used, from a private collectionER-ONB-CP€0.00Only 0 leftOnly 0 leftOut of stock -
ExtremaRatio - Ontos Knife - Black N690Co & Forprene - knife
Born out of the growing demand of demanding professionals, Extrema Ratio presents ONTOS - a field knife designed to meet any challenge. The name, derived from the Greek “the thing,” represents the perfect synthesis of toughness, versatility and reliability. Compact yet extremely durable, ONTOS is the ideal companion in any situation, thanks to its partially serrated blade that always ensures a sharp, ready-to-use cut.
Its nylon thigh scabbard, equipped with the MOLLE system, is designed to stay firmly anchored even in the harshest conditions, when the soldier is forced to give up his primary tactical equipment. And for those seeking an extra level of preparedness, a survival kit, purchased separately, is available to attach directly to the knife sheath.
Intended Use: Heavy Utility
Production Type: Industrial
Country of manufacture: Italy
Blade: N690Co 58HRC stainless steel
Surface treatment: Burnishing MIL-C-13924
Handle: Forprene
Blade length: 168mm.
Blade thickness: 6.3mm.
Total length: 299mm.
Balance: advanced
Weight: 411g.
Sheath: nylon, MOLLE compatible
Packaging: cardboard box with Extrema Ratio logos
Notes: -ER-ONB€0.00Only 0 leftOnly 0 leftOut of stock -
ExtremaRatio - Giant Mamba Knife - Black - USED - tactical knife
KNIFE WITHDRAWN FROM A PRIVATE COLLECTION
* Origin: Withdrawn from a private individual, previously purchased
* Condition: USED
* Commercially available: available
* Sharpening: resharpened by our internal laboratory
* Signs on the blade: has superficial scratches on the entire blade on both sides of the blade (visible in the photos) which do not compromise the quality but only the aesthetics
* Signs on the handle: None
* Box: YES
* Sheath: Yes
* Manuals, Certificates and Guarantees: Yes
* Checked and Certified by our internal laboratoryThe Giant Mamba has a tanto blade in Böhler N690 steel, 6.3 mm thick with a hardness of 58 HRC, flat edge and full-length lightening fuller.
The Forprene handle with threaded tang lock makes the knife solid and well-balanced. The sheath, M.O.L.L.E. compatible, is made of shock-absorbing nylon with a conical guide for quick insertion and extraction and a system that prevents shaking noises, it is equipped with a two-button safety flap, a thigh with anti-rotation rubber reinforcement and an ambidextrous reversible safety: simply pressing the trigger unlocks the blade.
Intended use: Tactical / Multi-role
Type of production: Industrial
Country of production: Italy
Blade: N690Co 58HRC stainless steel
Blade treatment: Mil-C-13924 burnishing
Handle: Forprene
Blade length: 163mm.
Blade thickness: 6.3mm.
Total length: 293mm.
Weight: 289g.
Sheath: Nylon
Packaging: Cardboard box with Extrema Ratio logos
Notes: -AP-ER-GMA-BK€0.00Only 0 leftOnly 0 leftOut of stock -
ExtremaRatio - Giant Mamba - HCS - tactical knife
The Giant Mamba has a "tanto" blade in 6.3 mm thick Böhler N690 steel with a hardness of 58 HRC, flat edge and full length lightening.
The Forprene handle with locking by threaded tang makes the knife solid and well balanced. The MOLLE compatible sheath is made of shockproof nylon with a conical opening for rapid insertion and extraction and a system that avoids shaking noises, it is equipped with a two-button safety flap, a thigh with anti-rotation rubber reinforcement and a reversible ambidextrous safety : simply pressing the trigger unlocks the blade.
Intended use: Tactical / MultiroleType of production: Industrial
Country of production: Italy
Blade: in N690Co 58HRC stainless steel
Blade treatment: Satin
Handle: Forprene
Blade length: 163mm.
Blade thickness: 6.3mm.
Total length: 293mm.
Weight: 289g.
Sheath: Nylon
Packaging: Cardboard box with Extrema Ratio logos
Note: -ER-GMA-HC€0.00Only 0 leftOnly 0 leftOut of stock -
ExtremaRatio - Giant Mamba - Ranger Green - tactical knife
The Giant Mamba has a "tanto" blade in 6.3 mm thick Böhler N690 steel with a hardness of 58 HRC, flat edge and full length lightening.
The Forprene handle with locking by threaded tang makes the knife solid and well balanced. The MOLLE compatible sheath is made of shockproof nylon with a conical opening for rapid insertion and extraction and a system that avoids shaking noises, it is equipped with a two-button safety flap, a thigh with anti-rotation rubber reinforcement and a reversible ambidextrous safety : simply pressing the trigger unlocks the blade.
Intended use: Tactical / MultiroleType of production: Industrial
Country of production: Italy
Blade: in N690Co 58HRC stainless steel
Blade treatment: Satin
Handle: Forprene
Blade length: 163mm.
Blade thickness: 6.3mm.
Total length: 293mm.
Weight: 289g.
Sheath: Nylon
Packaging: Cardboard box with Extrema Ratio logos
Note: -ER-GMA-RG€0.00Only 0 leftOnly 0 leftOut of stock -
Fox - Stealth Tanto - Titanio e Carbonio - FX-SCT01B - coltello
Destinazione d'uso: tattico/militare
Tipo di produzione: industriale
Lama: Titanio Beta 45HRC antiriflesso e Fibra di Carbonio
Produzione Lama: Italia
Manicatura: smontabile in Foprprene
Lunghezza lama: 160mm.
Spessore della lama: 6mm.
Lunghezza chiuso: -
Lunghezza totale: 296mm.
Bilanciatura: sul ramo di guardia
Peso: 158g.
Chiusura: -
Clip: -
Fodero: Kydex con attacco multiposizione in polimeri
Note: attacco multiposizione in acciaio sostituibile compreso nella confezione5758€483.61
Out of stock
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 FAQ
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.
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.