Sport, Military and Collectible Knives | Coltelleria Collini
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ExtremaRatio - SERE 2 - GOI Gruppo Operativo Incursori - rescue knife
S.E.R.E. 2, adopted by the Operational Group of Italian Navy Incursors, is the development of the S.E.R.E. 1, created by a study group composed of Special Forces operators, martial artists and experts in survival techniques. This variant 2 has been revised according to the needs expressed by the Department.
The acronym S.E.R.E. refers to the four principles "Survival, Evasion, Resistance and Escape" which make up the training program provided to military personnel at high risk of capture.
The S.E.R.E. 2 is suitable for both tip and cut use. The unique grip, unlike the classic blades of this type, is fixed between the index and the middle, thus forming a single axis from the tip of the blade to the user's wrist, allowing its use also in reverse grip. The handle has the same ergonomics as the butt of a firearm; this grip allows an instinctive and immediate use, being able to easily integrate the training in the training activity.
The geometry of the tip ensures maximum penetration, at the same time its axial profile with a triangular base protects its resistance. The design of the blade has on one side a partially serrated profile to favor the cutting of cordages, and on the other hand a classic cut or straps that, unlike the previous model, has re-sharpening and interchangeable blades.
The central loop, which has the dual function of lightening and turn-crickets, recalls the maritime origins of its creators. The peculiarity of the knife is that it has been specifically designed to be used even without the handle; the two holes in the part dedicated to the handle facilitate assembly.
The kydex sheath has a basic retention that can be used alone for operators who need extremely fast knife use, and a removable locking lock if necessary. The knife is supplied with double safety for ambidextrous mounting. An insert with a flat-blade screwdriver is available as an accessory. Comes with belt clip for belt fastening and paracord for fixing on the M.O.L.L.E. system.
"Using the gun, knife or other weapon for us is the same thing: it's just the extension of the hand." Quote from a commander of the ward.
Intended use: Tactical / Military / RescueType of production: Industrial
Lama production: Italy
Blade: stainless steel N690Co 58HRC
Blade treatment: Burnishing MIL-C-13924
Handle: Forprene
Blade length: 148mm.
Blade thickness: 6.3mm.
Total length: 217mm.
Thickness when closed: -
Weight: 306g.
Sheath: In Kydex, with Tek-Lok hooking system
Packaging: Cardboard box with Extrema Ratio logos
Note: -ER-SERE2€397.54Only 1 leftOnly 1 left
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Extremaratio - Arditi Black - Single-edged dagger - knife
The particular situation created in the early years of the 1914/18 war, now mired in increasingly complex and protected trenches and fortifications, favored the formation of men who, little by little, specialized in the coup.
Our assault units, the Arditi, had their dagger. It was obtained from the pieces cut away by the long blades of the Vetterli 1870 bayonets, which in the narrow trenches, in the corridors, between the reticulars were only an obstacle. It was certainly a rustic weapon, of recovery, not too beautiful but certainly inexpensive, light, not cumbersome and in expert hands also effective.
Today, on the occasion of the centenary, we remember this important page of Italian military history with a limited series of celebrations of 1918 copies. This version has a burnished blade, a polymer handle and a black cordura sheath.
Intended use: Tactical / Military / Collection
Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Blade treatment: Burnishing MIL-C-13924
Handle: Polymers
Blade length: 167mm.
Blade thickness: 6.3mm.
Total length: 270mm.
Weight: 224g.
Sheath: Nylon leg strap
Packaging: cardboard box with Extrema Ratio logos
Notes: Edition limited edition in 1918 copies - Edition to celebrate the hundred years of the Arditi of ItalyER-AR-BK€360.66Only 99 leftOnly 99 left -
Sog - Recon Government S21 rare knife - blued blade - Made in Japan - PRIVATE COLLECTION
KNIFE FROM PRIVATE COLLECTION
* Type: Previously Purchased
* Condition: Overall in excellent condition
* Availability Discontinued
* Sharpening: Factory edge
* Blade marks: No
* Handle marks: No
* Box: -
* Sheath: Present - Original
* Manuals, Certificates and Warranty: -
* Checked and certified by our internal laboratoryThe SOG Recon Government S21 is an extremely rare variant of the Government model, produced between the 1990s and early 2000s, when SOG was among the world reference brands in outdoor and military cutlery. This version stands out for its dark blade finish.
Unlike the standard Government S13 in stainless steel, the Recon Government uses SK-5 carbon steel, required for the gun-blued treatment, not applicable to stainless steels. This makes it a technically different model.
Produced as an alternative variant of the series, today it is considered an extremely rare knife with almost no availability on the collector market.
Technology and materials
SK-5 steel blade with gun-blued finish that reduces reflections and protects the surface. Hardness 57-58 HRC for a good balance between strength and sharpenability. Black Kraton handle for a secure grip.
Solid construction with steel guard and pommel, consistent with the Government series for heavy-duty use.
Technical specs
Blade: Plain edge, gun-blued finish
Steel: SK-5 carbon steel
Hardness: 57-58 HRC
Handle: Black Kraton
Blade length: 15,9 cm
Total length: 28,6 cm
Blade thickness: 4,6 mm
Weight: approx. 240 g
Sheath: Nylon
Production: Japan
Product code: S21
Production period: 1990 - 2002
Discontinued model, among the rarest in the SOG Government series.SOG-S21AP€0.00Only 0 leftOnly 0 left
Out of stock -
Mission - MTK-Ti Knife - Half Serrated Beta Titanium & Black G10 - PRIVATE COLLECTION - Knife
RETIRED KNIFE FROM PRIVATE COLLECTION
* Provenance: Withdrawn from a private individual, previously purchased
* Condition: Iconic knife from the early 2000s, never used, in very good condition (typical signs of wear of this model and material given by rubbing with the sheath)
* Available on the market: Difficult to find and not in this configuration
* Sharpening: Professionally sharpened
* Blade marks: Typical wear marks of this model and material, given by rubbing with the sheath
* Signs on handle: None
* Box: -
* Sheath: Present and in excellent condition, Made in USA by SpecOps
* Manuals, Certificates and Guarantees: -
* Controlled and Certified by our in-house laboratoryIntended use: Multi-role
Type of Production: industrial
Blade: Full Tang in Titanium Beta, with micro-balled finish
Country of production USA
Grip: Black G10
Blade length: 130mm.
Blade thickness: 6.3mm.
Total length: 255mm.
Weight: 243g.
Sheath: Made in USA by SpecOps, in coyote colored Nylon, belt, MOLLE compatible, with thermoformed Kydex inner part
Packaging: -
Note: Previously purchased knife, from private collection - iconic product from the early 2000sMTKTI-CP€0.00Only 0 leftOnly 0 leftOut of stock -
Mission - MPS 10-Ti Half Serrated - Beta Titanium Knife - PRIVATE COLLECTION - Knife
KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Origin: Withdrawn from a private collection, previously purchased
* Condition: Iconic knife from the early 2000s, never used, in excellent condition (signs of wear typical of this model and material due to rubbing against the sheath)
* Available on the market: Out of production
* Sharpness: Factory sharp
* Marks on blade: Signs of wear typical of this model and material, due to rubbing against the sheath
* Marks on handle: N/A
* Box: Present and in excellent condition
* Sheath: Present and in excellent condition, never used, with normal signs of age
* Manuals, Certificates, and Warranties: /
* Checked and Certified by our in-house laboratoryMISSION beta titanium knives are high-quality tools designed to withstand the most extreme conditions.
Made from a special beta titanium alloy, these knives combine exceptional lightness, corrosion resistance, and strength. MISSION developed these knives to ensure durability and reliability in extreme environments, such as the sea or high temperatures, and they are virtually indestructible. The main feature of these knives is their ability to remain perfectly usable even after intensive use.
The knives have been tested and selected by the US Navy SEALs, who have used them in sensitive missions and special operations. Thanks to their incredible strength, ease of maintenance, and reliability, they have become a benchmark for special forces professionals and enthusiasts of high-end outdoor equipment.
Intended use: Multi-purpose / Diving
Type of production: Industrial
Blade: Beta Titanium with micro-shot peened finish
Country of manufacture: USA
Handle: Beta Titanium with micro-shot peened finish
Blade length: 125mm.
Blade thickness: 6.3mm.
Total length: 248 mm.
Weight: 151 g.
Sheath: thermoformed Kydex, with removable nylon belt loop for vertical carry on belt.
Packaging: cardboard box with Mission Knives logos.
Notes: previously purchased knife from a private collection - discontinued, iconic product from the early 2000s.MPS10TI-CP€0.00Only 0 leftOnly 0 leftOut of stock -
Mission - MPK12-Ti Half Serrated - Titanium Beta & Hytrel - PRIVATE COLLECTION - Knife
KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Provenance: withdrawn from a private collection, previously purchased.
* Condition: Iconic knife from the early 2000s, used, but overall in excellent condition
* Commercially available: Discontinued
* Sharpening: Factory sharpened, can be improved.
* Marks on blade: Signs of wear typical of this model and material, given by rubbing against the sheath
* Marks on handle: None, normal workmanship marks found on all these models.
* Box: /
* Scabbard: Present, in very good condition, with normal signs of workmanship present on all of these models.
* Manuals, Certificates and Warranties: /
* Checked and Certified by our in-house laboratory.
MISSION beta titanium knives are high-quality tools designed to withstand the most extreme conditions.Made from a special beta titanium alloy, these knives combine exceptional lightness, corrosion resistance and strength. MISSION developed these knives to ensure durability and reliability in extreme environments, such as the sea or high temperatures, and they are virtually indestructible. The main feature of these knives is their ability to remain perfectly usable even after heavy use.
The knives have been tested and selected by U.S. Navy SEALs, who have used them in sensitive missions and special operations. Because of their incredible durability, ease of maintenance, and reliability, they have become a benchmark for special forces professionals and high-end outdoor equipment enthusiasts.
Intended Use: Tactical/Sub
Type of Manufacture: industrial
Blade: made of Beta Titanium with a micropeened finish
Country of manufacture USA
Handle: Hytrel
Blade length: 185mm.
Blade thickness: 6.3mm.
Total length: 305mm.
Weight: 264g.
Sheath: made of Hytrel and rubber, with Nylon strap
Packaging: /
Notes: previously purchased knife, from private collection - discontinued, iconic early 2000s productMPK12-TI-CP€0.00Only 0 leftOnly 0 leftOut of stock -
Extremaratio - Arditi Black - Single Edge Dagger - PRIVATE COLLECTION - Knife
KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Provenance: withdrawn from a private collection, previously purchased.
* Condition: Overall in good condition
* Commercially available: Still in catalog.
* Sharpening: Factory.
* Marks on blade: Marks and abrasions.
* Marks on handle: Small signs of wear and tear.
* Box: Present, not complete (absence of warranties and plastic bags).
* Scabbard: Present, in good condition.
* Manuals, Certificates and Warranties: - -
* Checked and Certified by our in-house laboratoryIntended Use: Tactical/Military/Collection
Production type: Industrial
Country of Production: Italy
Blade: stainless steel N690Co 58HRC
Blade Treatment: Burnishing MIL-C-13924
Handle: Polymer
Blade Length: 167mm.
Blade thickness: 6.3mm.
Total length: 270mm.
Weight: 224g.
Sheath: Nylon thigh piece
Packaging: cardboard box with Extrema Ratio logos
Notes: Limited edition in 2018 pieces - Edition to celebrate 100 years of the Italian ArditesER-AR-BK-CP€0.00Only 0 leftOnly 0 leftOut of stock -
Mission - MPK10-A2 Plain Edge - Navy Seal Knife - USED - Knife
Knife withdrawn from private collection - Used, but overall in good condition - An iconic, iconic knife from the first decade of the 2000s, tested and selected by the U.S. Navy Seals - The knife already when new presented itself with an average low level of finish and with a rough micropeened blade already very delicate and marked, this knife, used in the field by an Italian soldier in theaters of war, shows signs of cosmetic wear on both blade and sheath that do not affect its functionality in the slightest - Factory sharpening still in excellent condition - Original amphibious scabbard, in very good condition - No box - Checked and certified by our in-house laboratory.
Intended Use: Tactical / MultiroleType of Manufacture: industrial
Blade: A2 steel hardened to 57/58HRC
Country of Production: USA
Handle: made of Hytrel
Blade length: 140mm.
Blade thickness: 6.3mm.
Total length: 267mm.
Weight: 360g.
Sheath: amphibious, made of Hytrel
Packaging: without original packaging
Notes: used knife, withdrawn from private collection, overall in good conditionMI-MPK10-A2€0.00Only 0 leftOnly 0 leftOut of stock -
Sog - Pillar - CPM-S35VN - UF1001 - knife
Destination of use: sports / tactical
Type of production: industrial
Country of production: USA
Blade: full tang, stainless steel CPM-S35VN, 61HRC
Blade treatment: two tone: satin & stonewashed
Handle: black canvas micarta
Blade length: 127mm.
Blade thickness: 4mm.
Total length: 251mm.
Balancing: on the guard branch
Weight: 206g.
Sheath: in kydex, multiposition, with Tek-Lok type connection
Packaging: cardboard box with Sog Knives logos
Note: -S-UF1001€209.02Only 0 leftOnly 0 left
Out of stock -
Extremaratio - Arditi Deluxe - Single-edged dagger - Limited Collector's Edition - Knife
The particular situation created in the early years of the 1914/18 war, now mired in increasingly complex and protected trenches and fortifications, favored the formation of men who, little by little, specialized in the coup.
Our assault units, the Arditi, had their dagger. It was obtained from the pieces cut away by the long blades of the Vetterli 1870 bayonets, which in the narrow trenches, in the corridors, between the reticulars were only an obstacle. It was certainly a rustic weapon, of recovery, not too beautiful but certainly inexpensive, light, not cumbersome and in expert hands also effective.
Today, on the occasion of the centenary, we recall this important page of Italian military history with a limited celebratory series in only 100 numbered copies. This version has a satin blade and a walnut wood handle and is sold with a wooden box and leather sheath.
Intended use: Tactical / Military / Collection
Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Blade treatment: Satin
Handle: Walnut wood
Blade length: 167mm.
Blade thickness: 6.3mm.
Total length: 270mm.
Weight: 224g.
Sheath: leather thigh-strap
Packaging: wooden box
Notes: Limited edition in 100 numbered copies - Edition to celebrate the hundred years of the Italian ArditiER-AR-D€0.00Only 0 leftOnly 0 leftOut of stock -
Mission - MPK10-Ti Half Serrated - Coltello
Destinazione d'uso: Tattico/Sub
Tipo di Produzione: industriale
Lama: in Titanio Beta con finitura micropallinata
Produzione Lama USA
Manicatura: Hytrel
Lunghezza lama: 140mm.
Spessore della lama: 6.3mm.
Lunghezza totale: 267mm.
Bilanciatura: -
Peso: 240g.
Chiusura: -
Clip: -
Fodero: in Hytrel
Confezione: scatola di cartone con loghi Mission
Note: -10857€409.02Only 0 leftOnly 0 leftOut 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.