Approved - knives withdrawn from private collections, checked, overhauled and certified by Coltelleria Collini
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Emerson - MACH-1 BTS 2000 Knife - Black TiNi 154CM & G-10 - PRIVATE COLLECTION - knife
KNIFE ACQUIRED FROM A PRIVATE COLLECTION
* Origin: Acquired from a private individual, previously purchased
* Condition: Mechanically in excellent condition; cosmetically in good condition. Shows minor scuffs on the G10 handle due to the passage of time and limited use of the knife.
* Availability on the market: Knife from 2000, discontinued, particularly rare
* Sharpening: Professionally resharpened by the previous owner
* Marks on blade: Minor cosmetic abrasions caused by age and use of the knife, albeit limited
* Marks on handle: A few minor marks caused by age and use of the knife, albeit limited
* Box: -
* Sheath: -
* Manuals, Certificates, and Warranties: -
* Inspected and certified by our in-house laboratoryIntended use: Tactical/Military
Manufacturing type: Industrial
Blade: 154CM stainless steel
Blade finish: Titanium nitriding
Country of manufacture: USA
Handle: G-10 with titanium inlays
Blade length: 90 mm.
Blade thickness: 3 mm.
Closed length: 125 mm.
Overall length: 213 mm.
Weight: 128 g.
Closure: Liner Lock
Clip: burnished stainless steel, removable
Notes: Knife from 2000, discontinued, previously purchased, from a private collectionEM-MACH1-CP€315.57Only 1 leftOnly 1 left
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Busse Combat - SARsquatch 2008 Special Edition - INFI Steel & Raptor Micarta - PRIVATE COLLECTION - Knife
KNIFE PREVIOUSLY PURCHASED, FROM A PRIVATE COLLECTION
* Provenance: Acquired from a private individual; previously purchased and used
* Condition: Structure intact, no functional compromises, fully operational and ready for use. Presence of surface oxidation and signs of aging, consistent with the untreated finish. The absence of a coating has allowed, over the years, the development of a natural patina and signs of oxidation that attest to the authenticity of its use. These elements reinforce its technical character and ensure its longevity.
* Commercial Availability: Discontinued
* Sharpening: Professionally resharpened
* Blade Markings: Surface oxidation and signs of aging
* Handle Markings: None
* Box: /
* Sheath: Handcrafted Kydex, made specifically for this knife
* Manuals, Certificates, and Warranties: /
* Inspected and Certified by our in-house laboratoryThe Busse SARsquatch is one of the most iconic models in the Busse Combat Knife Company’s lineup, a direct expression of the design philosophy developed by Jerry Busse: maximum reliability, uncompromising construction, and proven performance in the field.
This specific 2008 Special Edition version stands out for its less common configuration, lacking a protective coating. A choice that at the time favored a more “bare and functional” approach, now particularly appreciated by the most experienced enthusiasts.
For many collectors and users, the SARsquatch represents one of those models that, during its production run, were difficult to find and even harder to purchase. An iconic piece from an era when Busse operated with limited availability and extremely high demand.
At the heart of the SARsquatch is the famous INFI steel, a proprietary alloy developed in-house by Busse, the specific composition details of which have been deliberately kept confidential over time.
In practice, INFI is recognized for: High resilience, suitable for intensive and heavy-duty use; Corrosion resistance superior to the average for non-stainless steels; Good edge retention, with ease of maintenance.
These qualities have helped build the brand’s reputation, making Busse models practical tools for real-world use.
This SARsquatch model is aimed at an audience that understands the value of the Busse project and the context in which it was born. It is not a pristine “collector’s item,” but an authentic knife, true to its operational nature.
It represents a tangible opportunity for those who, in the 2000s, followed the brand and appreciated its products but were unable to easily acquire them: today, it is possible to purchase an original piece, with a distinctive configuration and a history already written, ready to continue being used.
Intended Use: Heavy Duty
Production Type: Handcrafted
Country of Origin: USA
Blade: Full tang, INFI steel at 58/60 HRC
Blade Finish: Uncoated
Handle: Micarta with Raptor-style pattern, secured with 3 pin tubes
Blade Length: 185mm.
Blade Thickness: 5mm.
Overall length: 320 mm.
Balance: Guard-side balanced
Weight: 484 g.
Sheath: Handcrafted Kydex, made specifically for this knife; with modular attachment for vertical belt carry
Packaging: -
Notes: Knife from 2008, previously purchased, from a private collectionBU-SAR08-CP€749.00Only 1 leftOnly 1 left -
Zero Tolerance - Strider Fixed - Tungsten DLC CPM-S30V & OD Green G10 - PRIVATE COLLECTION - ZT0121 - knife
PREVIOUSLY PURCHASED KNIFE, FROM A PRIVATE COLLECTION
* Origin: Acquired from a private seller, previously purchased
* Condition: In excellent mechanical condition - good cosmetic condition
* Commercially available: Discontinued
* Sharpening: Professionally resharpened
* Marks on blade: Several signs of oxidation on the blade and minor abrasions, which do not compromise its practical use
* Marks on handle: None
* Box: Missing
* Sheath: In excellent condition
* Manuals, Certificates, and Warranties: None
* Inspected and certified by our in-house laboratoryIntended Use: Tactical
Manufacturing Type: Industrial
Country of Manufacture: USA
Blade: Full tang, CPM-S30V steel
Blade Finish: Tungsten DLC
Handle: G-10 with 3D machining
Blade length: 105 mm.
Blade thickness: 4.5 mm.
Overall length: 205 mm.
Balance: 1.5 cm rearward
Weight: 264 g.
Sheath: thermoformed Kydex
Notes: designed by Mick StriderZT0121-CP€0.00Only 0 leftOnly 0 left
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Zero Tolerance - ZT0100 by Ken Onion - Black DLC CPM-3V & Black G10 - PRIVATE COLLECTION - knife
KNIFE FROM A PRIVATE COLLECTION
* Origin: Previously purchased knife from a private collection
* Condition: 2008 model, overall in excellent condition
* Commercial Availability: Discontinued
* Sharpness: Factory-sharpened, could be improved
* Blade Condition: Minor cosmetic marks on the DLC finish due to age
* Handle Condition: None
* Box: -
* Sheath: Included
* Manuals, Certificates, and Warranties: -
* Inspected and Certified by our in-house laboratoryThe Zero Tolerance 0100 is one of the first knives produced by Zero Tolerance, the premium division of Kai USA, which was launched in 2006 to develop professional tools for military personnel, law enforcement, and first responders. The 0100 model was, in fact, one of the first three fixed-blade knives in the original lineup, alongside the 0121 and 0150 models.
The design bears the unmistakable stylistic signature of Ken Onion, the renowned American designer already responsible for numerous successes at Kershaw. The distinctive “S”-curved blade offers an unusual combination of cutting ability, power, and precision, making the ZT0100 suitable for both tactical applications and the most demanding outdoor use.
For its construction, Zero Tolerance chose CPM 3V, a steel then considered cutting-edge for its strength and impact resistance, paired with a tungsten DLC coating and three-dimensionally machined G-10 scales. This combination helped solidify the brand’s early reputation as a manufacturer of “overbuilt” knives, designed without compromise for field use.
Today, the ZT 0100 is a discontinued model particularly prized by collectors, as it is considered one of the knives that helped define the Zero Tolerance brand’s identity in its early years.
Intended Use: Tactical / Sporting / Collectible
Production Type: Industrial
Country of Manufacture: USA
Blade: Full tang, CPM-3V carbon steel
Blade Finish: Tungsten DLC coating
Handle: G10
Blade Length: 146mm.
Blade thickness: 4.8 mm.
Overall length: 267 mm.
Weight: 317 g.
Sheath: Nylon, belt-mounted, with thermoformed Kydex lining
Packaging: -
Notes: Previously purchased knife, from a private collectionZT0100-CP€0.00Only 0 leftOnly 0 leftOut of stock -
Zero Tolerance - 0308BLKTS - Tigerstripe CPM-20CV & Titanium - PRIVATE COLLECTION - knife
KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Origin: Withdrawn from a private collection, previously purchased and used
* Condition: Like new, never used, no packaging
* Available on the market: Out of production
* Sharpness: Factory sharp
* Marks on blade: None
* Marks on handle: None
* Box: -
* Sheath: -
* Manuals, Certificates, and Warranties: -
* Checked and certified by our in-house laboratoryIntended use: Sports / Tactical
Type of production: Industrial
Country of production: USA
Blade: CPM-20CV stainless steel
Blade finish: Tigerstripe black-oxide BlackWash
Handle: Titanium and G10
Blade length: 95mm.
Blade thickness: 4mm.
Closed length: 132mm.
Total length: 241mm.
Weight: 196g.
Closing system: Frame Lock
Clip: removable and reversible, stainless steel with Black PVD treatment
Opening system: Carson Flipper type on KVT ball bearings
Packaging: cardboard box with Zero Tolerance logos
Notes: knife previously purchased and used, from a private collectionZT-0308BLKTS-CP€0.00Only 0 leftOnly 0 leftOut of stock -
Emerson - MINI-B CQC-7 Tanto Plain - PRIVATE COLLECTION - knife
KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Origin: Withdrawn from a private collection, previously purchased.
* Condition: Overall in very good condition.
* Commercially available: 2001 knife, discontinued, featuring asymmetrical/chisel sharpening
* Sharpening: Factory.
* Marks on blade: None
* Marks on handle: A few small marks from time.
* Box: -
* Scabbard: -
* Manuals, Certificates and Warranties: - -
* Checked and Certified by our in-house laboratory
Intended Use: Tactical/MilitaryType of production: industrial
Blade: 154CM stainless steel with asymmetric/chisel sharpening
Blade finish: Stone Washed
Country of manufacture: USA
Handle: G-10 with titanium liners
Blade length: 72mm.
Blade thickness: 3mm.
Length closed: 105mm.
Total length: 180mm.
Weight: 92g.
Closure: Liner Lock
Clip: burnished stainless steel, removable
Notes: knife from 2001 discontinued, previously purchased, from a private collectionEM-MIN-CP€0.00Only 0 leftOnly 0 leftOut of stock -
Zero Tolerance - Strider Onion Folder - CPM-MagnaCut - SPRINT RUN - PRIVATE COLLECTION - ZT0350OLTS
Knife withdrawn from a private collection
- Origin: Withdrawn from a private owner, previously purchased and used
- Condition: Like new
- Availability: Discontinued
- Factory edge: Yes
- Blade marks: None
- Handle marks: None
- Box: Not included
- Sheath: Not included
- Manuals, Certificates, and Warranties: Not included
- Inspected and certified by our internal laboratory
One of our first ZT models and still one of the most popular, now offered in a limited edition with a CPM-MagnaCut steel blade.
The 0350 is a large and aggressive knife, yet compact and light enough to make it a practical and highly effective EDC. It features ZT's assisted opening system: the blade deploys quickly and easily, even with gloves, thanks to the ambidextrous flipper. The blade is finished with a bold and distinctive tiger-stripe pattern created with tungsten DLC coating.
Intended use: Tactical / Military
- Production type: Industrial
- Country of origin: USA
- Blade material: CPM-MagnaCut steel
- Blade finish: Tungsten DLC Coating
- Handle: G-10
- Blade length: 90mm
- Blade thickness: 3mm
- Closed length: 115mm
- Overall length: 195mm
- Closed thickness: 13mm
- Weight: 162g
- Locking mechanism: Liner Lock
- Clip: Removable, multi-position, stainless steel
- Packaging: Not included
- Notes: Sprint Run edition with CPM-MagnaCut steel - Design by Mick Strider and Ken Onion - SpeedSafe opening system
AP-ZT0350OLTS€0.00Only 0 leftOnly 0 leftOut of stock -
PDT - Zero Tolerance - ZT0006 - CPM-3V & OD Green G10 - PRIVATE COLLECTION by Floriano - knife
Exclusive product created in collaboration with the PDT YouTube channel - The Cutthroat's Park. This unique knife was actually used in a field test that you can view directly in this product sheet.
To make it even more special, we engraved Floriano's autograph and the PDT logo on the blade. The box of the knife was also autographed by Floriano making it a must-have collector's item.
KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Provenance: Floriano of the PDT Parchetto del Tagliagole.
* Condition: Overall in good condition.
* Commercially available: Still in catalog.
* Sharpening: Factory sharpened, stropped by Floriano after use.
* Marks on blade: Signs of concrete use on blade finish.
* Marks on handle: None
* Box: Present
* Scabbard: Present
* Manuals, Certificates and Warranties: /
* Checked and Certified by our in-house laboratoryIntended Use: Sporting
Production Type: Industrial
Country of Production: USA
Blade: full tang in CPM-3V steel
Blade treatment: Microbead blasting and Cerakote
Handle: G10 with stainless steel guard
Blade length: 152mm.
Blade thickness: 4.8mm.
Total length: 272mm.
Handle thickness: 17.8mm.
Weight: 292g.
Sheath: kydex
Packaging: cardboard box with ZT logos.
Notes: knife used in a YouTube video review by Floriano of PDTPDT-ZT0006-CP€0.00Only 0 leftOnly 0 leftOut of stock -
Zero Tolerance - ZT0630 Emerson Clip Point - PRIVATE COLLECTION - knife
KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Origin: Withdrawn from a private collection, previously purchased.
* Condition: Overall in very good condition, minor marks on clip and hardware.
* Commercially available: Discontinued
* Sharpening: Factory sharpened, can be improved.
* Marks on blade: None
* Marks on handle: Small marks on clip and hardware.
* Box: /
* Scabbard: /
* Manuals, Certificates and Warranties: / /
* Checked and Certified by our in-house laboratory
Intended Use: Tactical/SportingProduction Type: Industrial
Country of Production: USA
Blade: Stainless steel S35VN
Blade finish: Satin finish
Handle: G10 and Titanium stonewashed
Blade length: 91mm.
Blade thickness: 3.6mm.
Length closed: 124mm.
Total length: 216mm.
Thickness when closed: 13mm.
Weight: 178g.
Closure: Frame Lock
Clip: Removable and multi-position, stainless steel
Packaging: not present
Notes: previously purchased knife from a private collection - made in collaboration with Emerson Knives - Patented Wave opening systemZT0630-CP€0.00Only 0 leftOnly 0 leftOut of stock -
Zero Tolerance - Emerson Tanto - Carbon Fiber - ZT0620CF - PRIVATE COLLECTION - knife
KNIFE WITHDRAWN FROM A PRIVATE COLLECTION
* Origin: Withdrawn from a private individual, previously purchased
* Condition: like new
* Commercially available: no longer in production
* Sharpening: original
* Marks on blade: -
* Marks on handle: -
* Box: NO
* Sheath: NO
* Manuals, Certificates and Guarantees: NO
* Checked and Certified by our internal laboratoryIntended use: Tactical/Military
Type of production: Industrial
Blade production: USA
Blade: CTS204P stainless steel
Blade treatment: -
Handle: Carbon Fiber and Titanium stonewashed
Blade length: 91mm.
Blade thickness: 3.6mm.
Length closed: 124mm.
Total length: 216mm.
Thickness when closed: 13mm.
Balance: -
Weight: 178g.
Closure: Frame Lock
Clip: Removable and multi-position, in stainless steel
Sheath: -
Packaging: cardboard box with Zero Tolerance logos
Notes: in collaboration with Emerson Knives - Patented Wave opening systemAPZT620CF€0.00Only 0 leftOnly 0 leftOut of stock -
Emerson - Mini A-100 - Black G10 - MINIA100SF - PRIVATE COLLECTION - knife
KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Type: Previously Purchased
* Condition: Like new
* Commercially available Yes, but only in stonewashed "Thunderstorm" finish.
* Sharpening: Factory
* Marks on blade: No
* Marks on handle: No
* Box: Present and original
* Scabbard: not provided
* Manuals, Certificates and Warranties: present.
* Checked and Certified by our in-house laboratory
Intended Use: Sporting
Type of production: industrial
Blade: stainless steel 154CM
Blade finish: dual tone (satin and stone washed)
Country of manufacture: USA
Handle: G10 and titanium liners
Blade length: 76mm.
Blade thickness: 3.2mm.
Length closed: 104mm.
Total length: 183mm.
Weight: 114g.
Closure: Liner Lock
Clip: removable, stainless steel
Notes: Collected specimen from private collection, absolutely like newAP-EM-MA100€0.00Only 0 leftOnly 0 leftOut of stock -
Zero Tolerance - Sinkevich knife Flipper Titanium - ZT0456 - PRIVATE COLLECTION - knife
KNIFE WITHDRAWAL FROM A PRIVATE COLLECTION
* Type: Previously purchased
* Condition: in like new condition
* Commercially available: discontinued
* Sharpening: factory sharpening
* Marks on blade: no marks
* Marks on the handle: no marks
* Box: original ZT box
* Manuals, Certificates and Warranties: -
* Checked and certified by our internal laboratory Coltelleria ColliniIntended use: Sports / Collection
Type of production: Industrial
Production Lama: USA
Blade: CTS-204P stainless steel
Blade treatment: stone washed and satin finish
Handle: Titanium with anodized spacers
Blade length: 87mm.
Blade thickness: 4mm.
Closed length: 112mm.
Total length: 193mm.
Thick when closed: 14mm.
Weight: 178g.
Closure: Framelock
Clip: Removable, reversible, in stainless steel
Packaging: cardboard box with Zero Tolerance logos
Notes: Design by Dmirty Sinkevich - KVT opening on ball bearingsAP-ZT0456-2€0.00Only 0 leftOnly 0 leftOut of stock -
Zero Tolerance - Strider Onion - Tigerstripe Black G10 - ZT0303 - PRIVATE COLLECTION - knife
Knife from a private collection - Iconic and sought after model designed by Ken Onion and Mick Strider - Out of production and no longer available - Perfect in all, like new, serial 1544, does not have any kind of sign or defect - The knife shows an uncertainty at the tip, on the sharpening, which is slightly different; presumably already produced in this way by ZT - The sharpening is good and shows no signs of wear, presumably the sharpening is the original factory - Accompanied by original Zero Tolerance box, but referred to the model 0301 with green G10 handle - Checked and certified by our internal laboratory
Intended Use: Collection / Tactical / Military
Production type: Industrial
Country of Production: USA
Blade: Steel CPM-S30V
Blade Finish: Tigerstripe - Tungsten DLC Coating
Handle: Titanium and G-10 with 3D finish
Blade Length: 95mm.
Blade thickness: 4mm.
Length closed: 133mm.
Total length: 218mm.
Thickness when closed: 17mm.
Weight: 232g.
Closure: Frame Lock
Clip: Removable, Multiposition, Stainless Steel
Package: Cardboard box with Zero Tolerance logos (the box refers to a different model, 0301)
Notes: Design by Mick Strider and Ken Onion - SpeedSafe opening system - Like new - Retired from prvated collectionZT0303-CP€0.00Only 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.