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Extrema Ratio

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12 Items

  1. ExtremaRatio - K1 Dobermann knife - XXV Anniversary - Limited Edition

    This special edition in 250 pieces, proposed on the occasion of the 25th anniversary of the brand, maintains the shape of the original, but with materials and finishes corresponding to the current production.

    The K1 is equipped with a modified spear point profile blade, characterized by a tip that combines the 40° "tanto" profile with the more traditional European one, creating a sharp but very solid hybrid which, with the false false edge, makes it particularly effective in jab. The bevel is high, allowing for a very effective cutting angle.

    The blade is immediately recognizable by the fenestration at the heel, which allows for considerable lightening without compromising its strength. It is made of Böhler N690 steel, with heat treatments that bring its hardness to 58 HRC for the best combination of edge hold and resistance. The finish is satin with flat grinding.

    The handle, in anodized Anticorodal alloy, compared to the original presents the lightening on the sides that make the Extrema Ratio knives immediately distinguishable, but maintains the arched shape and the lateral "bellies" of the K1, offering an excellent grip both in the "saber" than in the "reverse" grip.

    The terminal part of the handle curves to form a sort of hook which allows particularly easy and rapid extraction from the scabbard, while the tang protrudes from it with a triangular cusp which acts as a glass breaker with a slot which allows the knife to be equipped of lasso.

    The leather scabbard faithfully reproduces the original while maintaining both the qualities of ease and speed of extraction. The carry can take place in an upside-down axillary position, horizontally on the belt or tactically on the thigh.

    The K1 equipment is completed with a polypropylene case ‌, complete leather sheath and underarm shoulder strap.

    WEIGHT g.: 493
    WEIGHT OZ.: 17.39
    BLADE LENGTH (MM): 210
    BLADE LENGTH (IN): 8.26
    TOTAL LENGTH (MM): 351
    TOTAL LENGTH (IN): 13.81
    BLADE THICKNESS (MM): 6.3
    BLADE THICKNESS (IN): 0.25
    BLADE MATERIAL: BÖHLER N690 STEEL (58HRC)
    BLADE FINISH: SATIN
    BLADE GRINDING: FLAT EDGE
    HANDLE MATERIAL: ANODIZED ANTICORODAL ALUMINUM

    ER-K1-D-LE
    €770.49
    Only 1 left
    Only 1 left
    Rating:
    100%
    5
  2. ExtremaRatio - Nimbus Special - Collector's Edition - Knife

    Born from the revisitation of the 39-09 model, the Nimbus was developed and chosen by the 183rd "Nembo" Paratrooper Regiment as a commemorative knife of the events of Case Grizzano which on 19 April 1945 saw the Nembo paratroopers engaged against the paratroopers of a German division . The clashes raged for 12 hours and were often resolved by hand-to-hand combat with the white weapon. A few days after the end of the Second World War one third of the battalion's men remained on the field, but their sacrifice led to the conquest of the battle. The knife in addition to wanting to commemorate an important event of our Armed Forces is the result of a development that has been carefully studied also in the technical aspects, so as to make it suitable for a concrete operational use.

    Particular attention has been paid to taking care of the dimensions, the shape and the search for solutions such as the kydex sheath, which is designed to make the knife an instrument capable of adapting to the most complex requirements of the port.

    The light and compact blade meets the demands of a modern tactical knife today.

    Intended use: Collection

    Type of production: Industrial
    Country of production: Italy
    Blade: stainless steel N690Co 58HRC
    Blade treatment: Satin finish
    Handle: Wood
    Blade length: 141mm.
    Blade thickness: 5mm.
    Total length: 263mm.
    Weight: 203g.
    Sheath: in Leather
    Packaging: display case
    Notes: -

    ER-NIM-SP
    €613.93
    Only 1 left
    Only 1 left
    Rating:
    96%
    4.8
  3. ExtremaRatio - Nimbus Black Ordinanza - Knife

    Born from the revisitation of the 39-09 model, the Nimbus was developed and chosen by the 183rd "Nembo" Paratrooper Regiment as a commemorative knife of the events of Case Grizzano which on 19 April 1945 saw the Nembo paratroopers engaged against the paratroopers of a German division . The clashes raged for 12 hours and were often resolved by hand-to-hand combat with the white weapon. A few days after the end of the Second World War one third of the battalion's men remained on the field, but their sacrifice led to the conquest of the battle. The knife in addition to wanting to commemorate an important event of our Armed Forces is the result of a development that has been carefully studied also in the technical aspects, so as to make it suitable for a concrete operational use.

    Particular attention has been paid to taking care of the dimensions, the shape and the search for solutions such as the kydex sheath, which is designed to make the knife an instrument capable of adapting to the most complex requirements of the port.

    The light and compact blade meets the demands of a modern tactical knife today.

    Intended use: Tactical / CQC

    Type of production: Industrial
    Country of production: Italy
    Blade: stainless steel N690Co 58HRC
    Blade treatment: Brunishing Mil-C-13924
    Handle: Forprene
    Blade length: 141mm.
    Blade thickness: 5mm.
    Total length: 263mm.
    Weight: 203g.
    Sheath: in Kydex
    Packaging: ABS suitcase with 183rd Parachute Regiment logos "Nembo"
    Note: -

    ER-NIM-OR
    €313.11
    Only 1 left
    Only 1 left
    Rating:
    93%
    4.7
  4. ExtremaRatio - Nimbus Black Operative - knife

    Born from the revisitation of the 39-09 model, the Nimbus was developed and chosen by the 183rd "Nembo" Paratrooper Regiment as a commemorative knife of the events of Case Grizzano which on 19 April 1945 saw the Nembo paratroopers engaged against the paratroopers of a German division . The clashes raged for 12 hours and were often resolved by hand-to-hand combat with the white weapon. A few days after the end of the Second World War one third of the battalion's men remained on the field, but their sacrifice led to the conquest of the battle. The knife in addition to wanting to commemorate an important event of our Armed Forces is the result of a development that has been carefully studied also in the technical aspects, so as to make it suitable for a concrete operational use.

    Particular attention has been paid to taking care of the dimensions, the shape and the search for solutions such as the kydex sheath, which is designed to make the knife an instrument capable of adapting to the most complex requirements of the port.

    The light and compact blade meets the demands of a modern tactical knife today.

    Intended use: Tactical / CQC

    Type of production: Industrial
    Country of production: Italy
    Blade: stainless steel N690Co 58HRC
    Blade treatment: Brunishing Mil-C-13924
    Handle: Forprene
    Blade length: 141mm.
    Blade thickness: 5mm.
    Total length: 263mm.
    Weight: 203g.
    Sheath: in Kydex
    Packaging: Cardboard box with Extrema Ratio logos
    Note: -

    ER-NIM-OP
    €259.84
    Only 1 left
    Only 1 left
  5. ExtremaRatio - 39-09 Knife Ordinance COFS - knife

    This knife is the civil version of the one currently supplied to the COFS: Joint Forces Command for Special Forces Operations. Their motto, engraved on the blade and on the ABS suitcase, is "etiam si omnes, ego non", a Latin phrase dealing with the Gospel according to Matthew (26, 33-34) which translated literally means "even if all, I do not" .

    Intended use: Tactical

    Type of production: Industrial
    Lama production: Italy
    Blade: Stainless steel N690Co 58HRC
    Blade treatment: Testudo
    Handle: Forprene
    Blade length: 195mm.
    Blade thickness: 6.3mm.
    Length closed: -
    Total length: 315mm.
    Thick when closed: -
    Balancing: on the guard branch
    Weight: 342g.
    Closing: -
    Clip: -
    Seat covers: 1 Cordura and ABS leg sheath + 1 tactical sheath in cordura and abs
    Packaging: ABS case with COFS and Extrema Ratio logos
    Note: -

    This project, sponsored by the COFS (Operational Forces Special Command) in the person of Gen.Bertolini, had already been suggested by some collectors of vintage weapons.

    The restyling of the famous "Paratrooper dagger dagger mod.1939", an important piece of Italian military history.

    The knife, although borrowing the line, the structure and the proportions of the original, has been strengthened, enriched with functional modifications and made with materials with modern military specifications.

    Unexpectedly, the result of these few modifications is an extremely functional and effective dagger, absolutely competitive with the best contemporary military knives.

    The sheath is rigid from the ankle, in the typical manner in which the bayonet is carried by Italian paratroopers.

    Ceremony belt sheath included, inclined at 45 ° like the original.

    4255C
    €510.66
    Only 98 left
    Only 98 left
  6. ExtremaRatio - 39-09 Operativo - coltello

    Questo progetto, patrocinato dal COFS (Comando Operativo Forze Speciali) nella persona del Gen.Bertolini, era gia stato suggerito da alcuni collezionisti di armi bianche d'epoca.

    Il restyling del famoso "Pugnale da paracadutista assaltatore mod.1939", un importante pezzo di storia militare italiana.

    Il coltello, pur mutuando la linea, la struttura e le proporzioni dell'originale, è stato irrobustito, arricchito di modifiche funzionali e realizzato con materiali a specifiche militari moderne.

    Inaspettatamente, il risultato di queste poche modifiche è un pugnale estremamente funzionale ed efficace, assolutamente competitivo con i migliori coltelli militari contemporanei.

    Il fodero è rigido da caviglia, alla maniera tipica in cui viene portata la baionetta dai paracadutisti italiani.

    Destinazione d'uso: Tattico

    Tipo di produzione: Industriale
    Produzione Lama: Italia
    Lama: In acciaio inox N690Co 58HRC
    Trattamento Lama: Testudo
    Manicatura: Forprene
    Lunghezza lama: 195mm.
    Spessore lama: 6.3mm.
    Lunghezza chiuso: -
    Lunghezza totale: 315mm.
    Spessore da chiuso: -
    Bilanciatura: sul ramo di guardia
    Peso: 342g.
    Chiusura: -
    Clip: -
    Fodero: Cordura e ABS
    Confezione: scatola in cartone con loghi Extrema Ratio
    Note: -
    4255
    €350.00
    Only 99 left
    Only 99 left
  7. ExtremaRatio - Ermes - Satin Ordinanza - Collectors Edition - knife

    ERMES is the commemorative knife developed in collaboration with the Special Operations Helicopter Regiment (R.E.O.S.) which is part of the Army Aviation Command.

    The R.E.O.S. is the operational unit of helicopters in support of special forces composed of personnel specifically trained and equipped to support military activities in any operational context.

    The stylized guards of the knife represent the wings present in the heraldic coat of arms of the unit. The steel used is the reliable Bölher N690Co heat treated to 58 HRC. Fiber Reinforced Nylon (FRN) polyamide polymer was chosen for the handle. The hybrid Kydex and fabric sheath is equipped with belt or harness attachment with MOLLE interface system.

    It is available in two versions:
    "ERMES SATIN ORDINANZA" with satin finish blade and ABS case.
    "ERMES BLACK OPERATIVO", with the burnished blade.

     

    Intended use: Collection / Tactical

    Production type: Industrial
    Country of Production: Italy
    Blade: Stainless steel N690Co 58HRC
    Blade Treatment: Satin finish
    Handle: FRN (Fiberglass Reinforced Nylon)
    Blade length: 140mm.
    Blade thickness: 6.3mm.
    Total length: 256mm.
    Weight: 229g.
    Sheath: Kydex and Fabric with MOLLE type hooking system.
    Package: Commemorative case in ABS with the logos of the department
    Notes: Commemorative knife developed in collaboration with the Regiment Helicopters for Special Operations (R.E.O.S.)

    ER-ERM-OR
    €356.56
    Only 0 left
    Only 0 left
    Rating:
    100%
    5
    Out of stock
  8. ExtremaRatio - Ermes - Operativo Black - knife

    ERMES is the commemorative knife developed in collaboration with the Special Operations Helicopter Regiment (R.E.O.S.) which is part of the Army Aviation Command.

    The R.E.O.S. is the operational unit of helicopters in support of special forces composed of personnel specifically trained and equipped to support military activities in any operational context.

    The stylized guards of the knife represent the wings present in the heraldic coat of arms of the unit. The steel used is the reliable Bölher N690Co heat treated to 58 HRC. Fiber Reinforced Nylon (FRN) polyamide polymer was chosen for the handle. The hybrid Kydex and fabric sheath is equipped with belt or harness attachment with MOLLE interface system.

    It is available in two versions:
    "ERMES SATIN ORDINANZAR" with satin finish blade and ABS case.
    "ERMES BLACK OPERATIVO", with the burnished blade.

     

    Intended use: Collection / Tactical

    Production type: Industrial
    Country of Production: Italy
    Blade: Stainless steel N690Co 58HRC
    Blade Treatment: Burnishing Mil-C-13924
    Handle: FRN (Fiberglass Reinforced Nylon)
    Blade length: 140mm.
    Blade thickness: 6.3mm.
    Total length: 256mm.
    Weight: 229g.
    Sheath: Kydex and Fabric with MOLLE type hooking system.
    Packaging: Cardboard box with Extrema Ratio logos.
    Notes: Commemorative knife developed in collaboration with the Regiment Helicopters for Special Operations (R.E.O.S.)

    ER-ERM-OP
    €327.05
    Only 0 left
    Only 0 left
    Rating:
    97%
    4.9
    Out of stock
  9. ExtremaRatio - Leucoton Black - knife

    Traditional combat knife designed on the basis of the CORVO. Sampling part developed for the Chilean army.

    Intended use: Tactical, Utility
    Type of production: Industrial
    Country of production: Italy
    Blade: Bohler N690Co stainless steel at 58HRC
    Blade treatment: Burnishing MIL-C-13924
    Handle: Forprene
    Blade length: 141mm.
    Blade thickness: 6.3mm.
    Total length: 267mm.
    Weight: 339g.
    Sheath: Nylon
    Packaging: cardboard box with Extrema Ratio logos

    ER-LEUCO
    €248.36
    Only -99 left
    Only -99 left
    Out of stock
  10. ExtremaRatio - Dobermann IV S - Africa - knife

    DOBERMANN IV S Africa is a knife dedicated to professionals of the hunt.

    The knife blade is stainless Böhler N690, the tested steel Austrian enriched with chromium, vanadium, molybdenum and cobalt whose characteristics are hardness, essential to achieve effective sharpening, and maintaining high characteristics of elasticity.

    DOBERMANN Africa IV will be provided with two handles, a wooden santos rosewood and into Forprene. The user can change the handle with ease depending on the needs of the moment. The knife will also be provided with a leather sheath Italian manufacture, of a plate sharpener and a scioglinodi steel.

    Intended Use: Hunting / Hiking / Collection

    Type of production: Industrial
    Production Lama: Italy
    Blade: stainless steel N690Co
    Blade treatment: Satin
    Handle: Wood Santos and / or Forprene
    Blade length: 140mm.
    Blade thickness: 6.3mm.
    Overall length: 290mm.
    Weight: 335g.
    Sheath: Brown leather, hand-stitched, made in Italy
    Packaging: Cardboard box with logos Extrema Ratio
    Note: The package includes a diamond sharpener and one untie knots in stainless steel

    12384S
    €477.87
    Only -99 left
    Only -99 left
    Rating:
    93%
    4.7
    Out of stock
  11. ExtremaRatio - 39-09 Ordinanza COFS Special Edition - coltello

    Il 39-09 è disponibile anche in edizione speciale numerata ma non limitata, coltello satinato con impugnatura in legno, loghi e motto C.O.F.S., fodero da parata e scatola espositore in legno laccato nero.

    Destinazione d'uso: Collezione

    Tipo di produzione: Industriale
    Produzione Lama: Italia
    Lama: In acciaio inox N690Co 58HRC
    Manicatura: legno
    Lunghezza lama: 195mm.
    Spessore lama: 6.3mm.
    Lunghezza totale: 315mm.
    Bilanciatura: sul ramo di guardia
    Peso: 342g.
    Foderi:fodero da parata in cordura e abs
    Confezione: elegante scatola in legno Extrema Ratio

    Questo progetto, patrocinato dal COFS (Comando Operativo Forze Speciali) nella persona del Gen.Bertolini, era gia stato suggerito da alcuni collezionisti di armi bianche d'epoca.

    Il restyling del famoso "Pugnale da paracadutista assaltatore mod.1939", un importante pezzo di storia militare italiana.

    Il coltello, pur mutuando la linea, la struttura e le proporzioni dell'originale, è stato irrobustito, arricchito di modifiche funzionali e realizzato con materiali a specifiche militari moderne.

    Inaspettatamente, il risultato di queste poche modifiche è un pugnale estremamente funzionale ed efficace, assolutamente competitivo con i migliori coltelli militari contemporanei.

    Il fodero è rigido da caviglia, alla maniera tipica in cui viene portata la baionetta dai paracadutisti italiani.

    E' incluso il fodero da cerimonia per cintura, inclinato a 45° come l'originale.

    4255COL
    €629.51
    Out of stock
  12. ExtremaRatio - C.N.1 - coltello

    Rivisitazione in chiave moderna del pugnale "Modello 35 da Marcia" costruito in periodo fascista per la campagna in Africa Orientale.

    Destinazione d'uso: Tattico/Collezione

    Tipo di produzione: Industriale
    Produzione Lama: Italia
    Lama: In acciaio inox N690Co 58HRC
    Trattamento Lama: Testudo
    Manicatura: Forprene
    Lunghezza lama: 190mm.
    Spessore lama: 6.3mm.
    Lunghezza chiuso: -
    Lunghezza totale: 310mm.
    Spessore da chiuso: -
    Bilanciatura: sul ramo di guardia
    Peso: 296g.
    Chiusura: -
    Clip: -
    Foderi: 1 fodero cosciale in Cordura e ABS + 1 fodero tattico in pelle nera ed abs
    Confezione: scatola di cartone con loghi Extrema Ratio
    Note: -

    4360
    €479.51
    Only -99 left
    Only -99 left
    Rating:
    93%
    4.7
    Out of stock
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