Sport, Military and Collectible Knives | Coltelleria Collini
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Boker Plus Extension Knife - Stonewashed D2 - G10 Handle - 02BP0003 - Hunting Knife
The Böker Plus Extension Knife is a modern hunting knife that blends the tradition of the “extendable knife” with cutting-edge materials and finishes. Designed for those who demand reliability, power, and versatility in the field, it features a thick and solid D2 steel blade, a G10 handle with steel liners, and a custom-fitted Kydex sheath. This knife ensures durability, precision, and comfort even in the most demanding outdoor tasks.
Its solid locking system, using a large transverse pin, guarantees stability in both open and closed positions. The handle’s historical design recalls the double-T baselards of the 15th century, giving the knife a unique and iconic look. Ideal for hunting, camping, or discerning collectors, the Böker Extension Knife stands out for its outstanding performance and craftsmanship.
Intended use: Hunting, outdoor work, tactical/survival
Production type: Industrial / high-end series production
Country of origin: China
Blade: D2 steel, thick and solid construction
Blade finish: Stonewashed (satin/stonewash finish)
Handle: G10 with steel liners; double-plate handle, “double-T” design inspired by historical baselards
Blade length: 13 cm closed – 18.50 cm extended
Blade thickness: 5.00 mm
Closed length: 107 mm — not applicable as in folding knives
Total length: 23 cm closed – 30.90 cm extended
Closed thickness: 2.5 cm
Weight: 444.00 g
Locking system: Transverse pin lock; requires two hands to open
Clip: No clip; includes custom Kydex sheath
Packaging: Knife + custom Kydex sheathBO-02BP0003-€131.15Only 0 leftOnly 0 left
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.