Extrema Ratio Knives

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Folding knife Extrema Ratio BF3 Dark Talon
Folding knife Extrema Ratio BF3 Dark Talon 12cm 04.1000.0158/BLK
The common features of the "Basic Folder" series, including the BF1 and BF2, are lightness, simplicity and ease of carry. BF1 e BF2 are utility knives, the BF3 is both a utility and a combat knife. The blade is sharp and piercing, the carry (where legally allowed) is sufficiently comfortable. The “bridge like” clip and a long enough pocket will properly conceal the knife. Slim and essential.
₽17,361.13

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Tactical knife Extrema Ratio MK2.1 Desert Warefare 128MK2DW 16.9cm - 1
Fixed blade Knife Extrema Ratio MK2.1 Desert Warefare 16.9cm 04.1000.0128/DW
The restyling of a classical, a tribute to a veteran, one of the most distributed and used knives during World War II : MARK 2. It was produced in many versions by historical US knives manufacturers but always following the original specs given by the U.S. NAVY. It is the preferred tool among traditionalists who only trust “battle tested" knives. Throughout the years several manufacturers have tried to restyle this knife with little success. It is in fact the original model which is still favoured in the main catalogues. Extrema Ratio’s aim, in this ambitious project, is to keep the original characteristics while developing only functional changes to increase performance. Cobalt reinforced stainless steel is used for the blade, AISI 303 and AISI 304 are used for the other components. The rounded leather handle has been replaced with a fibre glass reinforced nylon handle. The ergonomics of the original knife has been left intact while all structural parts have been oversized to obtain a sturdy versatile knife. The most important changes have been made to solve the so called “weak spots” of the original version. 1.the possibility to disassemble the knife in the field without the need of tools; 2.the Bowie shape was straightened for easy sharpening; 3.the grooves in the “barrel” shaped handle help to find proper blade direction even in dark conditions; 4.the same grooves improve the grip during twisting movements Other small modifications were to add holes on the back tang to add a lanyard and on the front guard to tie the blade on a pole to be used as a spear. For purely estethical reasons the traditional bloodgroove has been “cowardly” replaced with the typical Extrema Ratio “side groove”. The original knife was perfect and no other modifications were needed. The first available versions will be the classic Extrema Ratio Black and the new Desert Warfare which will come with a special HCS coyote sheath specifically developed for SOF units. The black version comes with standard side sheath which includes automatic retention system, protective flap and is M.O.L.L.E. compatible.
₽33,808.51

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Tactical knife Extrema Ratio Fulcrum Black 04.1000.0082/BLK 17.1cm - 1
Fixed blade Knife Extrema Ratio Fulcrum FH Black 17.1cm 04.1000.0082/BLK
Probably a milestone among multipurpose knives. Employed on a large scale in Afghanistan as standard equipment by the members of the Italian mission "Nibbio", it is part of an experimental project undertaken by the Alpine Troops Headquarters on the renewal of individual equipment. During the preparation for this mission, the Alpine Troops Headquarters coordinated a team of companies in the realization of a new and complete experimental kit of individual equipment. Extrema Ratio is the company that the Alpine Troops Headquarters chose for the development of a multipurpose knife suitable for the infantry, a knife that could be used in any action and that could successfully solve any type of problem even where more specialized equipment proved inadequate.It was so successful that the multipurpose knife then led to the development of the Fulcrum Bayonet, which had the same characteristics but could be fixed to the issued rifle. The Fulcrum is an extremely robust and versatile knife, the blade can take loads over 150kg without breaking, the point is incredibly robust and the "tanto" profile means the knife can be used for long periods without affecting the sharpness of the last section, this guarantees, together with the partially sharp dorsal blade, (the civilian version does not include this), its capacity for penetration which is necessary in close combat against targets with heavy clothing, garnments and soft ballistic protection. The forward centre of gravity and the weight of the blade make it suitable for heavy field work. The new automatic hard sheath means it can be carried both safely and comfortably and the lace that holds the upper part of the handle dramatically reduces the risk of entanglement, even when making parachute jumps. The speed and facility with which both ordinary and extraordinary maintenance can be carried out help to make Fulcrum an excellent choice for use on a large scale from an economic and administrative point of view.
₽27,869.18

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Tactical knife Extrema Ratio Col Moschin desert warfare 125COLMOSDW 15cm - 2
Fixed blade Knife Extrema Ratio Col Moschin Desert Warfare 15cm 04.1000.0125/DW
Commissioned and officially adopted in 2002 by the Ninth Rgt. Incursori "Col. Moschin", this model is the quintessence of a pure combat knife. Inspired by daggers with an asymmetric blade and straight but slightly orientated handle used by the Arditi, in whose footsteps the Col Moschin Regiment follows, it has been re-elaborated in a modern form, endowed with a double edged blade, (single for the civilian version), integral guards and a removable E.R.M.H. handle in Forprene. Both grindings are hollow grind razor sharp. The centre of gravity is towards the end of the handle, the point especially sharp, it is light, manageable and intuitive. Each new Incursore receives one, and each new Incursore is trained to use it in the best way.
₽32,285.60

In stock

Tactical knife Extrema Ratio Col Moschin Black
Fixed blade Knife Extrema Ratio Col Moschin Black 15cm 04.1000.0125/BLK
Commissioned and officially adopted in 2002 by the Ninth Rgt. Incursori "Col. Moschin", this model is the quintessence of a pure combat knife. Inspired by daggers with an asymmetric blade and straight but slightly orientated handle used by the Arditi, in whose footsteps the Col Moschin Regiment follows, it has been re-elaborated in a modern form, endowed with a double edged blade, (single for the civilian version), integral guards and a removable E.R.M.H. handle in Forprene. Both grindings are hollow grind razor sharp. The centre of gravity is towards the end of the handle, the point especially sharp, it is light, manageable and intuitive. Each new Incursore receives one, and each new Incursore is trained to use it in the best way.
₽30,305.82

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Diving knife Extrema Ratio BF2 V 04.1000.0147/SW 6.5cm - 1
Diving knife Extrema Ratio BF2 V 6.5cm 04.1000.0147/SW
Boatswain's knife. Thanks to extremely compact shape typical of BF Extrema Ratio models, the extraction of the knife from the pocket becomes easier and it prevents the tool from entangling, a crucial detail in case of emergency. The blade has a flat grinding which allows symmetrical cutting jobs symmetrical with wider support. On the other hand the tip which is thick and durable thanks to the “tanto” version, allows a greater penetration and a more clean and precise cut.The aluminum handle, has the typical "Tactical" structure, already used in the past on the BF models.It has got a pattern of concentric circles giving the handle an additional grip. This structure enables the rinsing of the handle from salt, or organic material, very important considering its primary use in the naval environment. In the central part of the handle its placed a small slot to allow to lock or unlock small wrenches. In the right part of the handle, in correspondence of the liner lock, a steel plate is placed to give a more solid structure to the slot. The BF2 V comes with just one stone washed finishing to find it easier. The same finishing is proposed for the accessories: •reversible clip applicable on both right or left side of handle. •screw regulation system with 12 positions to control the closing and opening of the blade. •marlin sparkle on the tang of the handle with a length of 70mm to untie knots in ropes or thick cords. In opened position it is fixed by a steel mechanism easy to activate and placed inside the handle in order to feel it while handling the knife. It comes with a plastic lanyard with a fix to be fix to the belt, with a joint to allow the different placements and with a quick release simply pushing of the clip button. The length and flexibility of the lanyard allows to work with the tool in the maximum operating area what a shorter lanyard would not allow
₽19,797.77

In stock

Diving knife Extrema Ratio Dicok 04.1000.0318/BLK 8.1cm
Diving knife Extrema Ratio Dicok 8.1cm 04.1000.0318/BLK
DICOK - Diving Compact Knife This diving knife has been designed together with experts in diving sector. It has got a suitable size to be easily used in water environment. This is to offer a working tool and an essential part of underwater equipment. The blade is made out of stainless steel with chemical burnishing process which makes it highly resistant to corrosion.It is highly resistant to keep the sharpening edge and to flexing. It is planned to be used as a lever thanks to its cut tip, and to cut nets, ropes and fabrics thanks to the serration on the blade.Nylon fabrics and polyester tapes together with a anti-slip rubber membrane form the soft part of the sheath. The hard part is in Kydex.The sheath is designed to allow multiple mounting both to the equipment and to the body of the user. The handle is in nylon loaded with glass fibers and it presents an anti-slip finishing which makes the handle ergonomic and perfectly fitting both the glove and the bare hand of user. This enables both precision and strength works. On the sheath an anti-panic opening system has been planned which enables a quick release of the knife by simply pulling, avoiding to act on the retaining buckle.
₽19,797.77

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Folding knife Extrema Ratio LKU01 Luce 04.1000.0243M3SATC 10cm
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Folding knife Extrema Ratio LKU01 Luce 10cm 04.1000.0243M3SATC
Extrema Ratio LKU01 Luce is a new, limited-edition version (only 100 pieces) of the popular LKU01 EDC knife. The blade features a satin finish and is made of Böhler M390 steel. The handle scales are crafted from carbon fiber, a material known for its high mechanical strength and vibration-absorbing properties, making the grip more comfortable to use. The Extrema Ratio LKU01 Luce weighs 109 g. Its stainless steel pocket clip is removable and ambidextrous. The clip is shaped like a horseshoe, paying tribute to Italian fighters of the 1800s and 1900s who used this symbol. The LKU01 Luce comes in an elegant black box that includes a carbon fiber card signed by master bladesmith Danilo Rossi Lajolo di Cossano. The card has rounded corners, but its lower edge is sharpened, allowing it to be used for defensive purposes if necessary. You are advised to check your local laws to ensure that the use, carrying, and transportation of this tool are permitted in your country.
₽29,341.72

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Folding knife Extrema Ratio LKU01 Urban Sideral 10cm
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Folding knife Extrema Ratio LKU01 Urban Sideral 10cm
Extrema Ratio LKU01 URBAN Sideral is a new Italian EDC folding knife suitable also for tactical tasks. Knife has the 10 cm blade made of Böhler N690 steel blade. Handle scales are made of anticorodal aluminium. The pocket clip, made of stainless steel, is removable and reversible to ensure ambidextrous use. Extrema Ratio LKU01 URBAN Sideral weights 123 g. 
₽16,927.92

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Folding knife Extrema Ratio X-Ant 041000467MDTI 5cm
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Folding knife Extrema Ratio X-Ant 5cm 041000467MDTI
X-Ant is a limited edition of the Extrema Ratio Ant Every Day Carry series of knives. This compact folding knife of unusual design has a 5 cm long blade. The uniqueness of the X-Ant is that the blade is made of sintered tungsten carbide with a hardness of 71 HRC. This provides very high cutting ability and absolute corrosion resistance. Extrema Ratio X-Ant is supplied in a durable polypropylene case, resistant to moisture, dust and impact. Inside there is a metal plate with a serial number of a limited series, which makes each copy of the Extrema Ratio X-Ant a real collector's item.
₽30,094.07

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Folding knife Extrema Ratio LKU01 Urban Dark 10cm
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Folding knife Extrema Ratio LKU01 Urban Dark 10cm
Extrema Ratio LKU01 URBAN Dark is a folding knife that combines Italian elegance and combat strategy. It has the 58 HRC hardened Böhler N690 steel blade and the anticorodal aluminium handle scales. The clip, made of stainless steel, is removable and reversible to ensure ambidextrous use. Extrema Ratio LKU01 URBAN Dark weights 123 g. 
₽16,927.92

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Extrema Ratio Versa Satin 0410000214SAT 8cm
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Extrema Ratio Versa Satin 8cm 0410000214SAT
Versa is a new multipurpose knife from Extrema Ratio. This models has a monolithic construction made of Bohler N690 steel. 80 mm blade has a tanto profile. Name Versa, perfectly embodies the characteristics of this knife; its versatility makes it suitable for a variety of situations. Extrema Ratio Versa good as Every Day Carry knife, and as outdoor, survival, bushcraft or hunting knife. Satin version is convinient as EDC knife. Weight is 110 g. Versa comes with kydex sheath.
₽12,789.98

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Extrema Ratio Versa Expeditions 0410000214EXP 8cm
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Extrema Ratio Versa Expeditions 8cm 0410000214EXP
Extrema Ratio Versa Expeditions is suitable as outdoor, survival and bushcraft knife. Versa has a full tang construction made of Bohler N690 steel with dark stone finish. 80 mm blade has a tanto profile. Weight is 110 g. Extrema Ratio Versa comes with kydex sheath.
₽15,047.04

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Tactical knife Extrema Ratio Defender 2 DG Black 0410000489BLK 11.8cm
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Fixed blade Knife Extrema Ratio Defender 2 DG Black 11.8cm 0410000489BLK
Extrema Ratio Black Defender 2 DG is the combat version of Scout knife with ultra slim shape. This 118 mm blade comes with a blood drain which makes it lighter. This is DG - double guard version. Defender comes with black kydex sheath fitting the M.O.L.L.E. system.
₽19,711.15

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Tactical knife Extrema Ratio Defender 2 DG Stone washed 0410000489SW 11.8cm
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Fixed blade Knife Extrema Ratio Defender 2 DG Stone washed 11.8cm 0410000489SW
Extrema Ratio Defender 2 DG is the combat version of Scout knife with ultra slim shape. This 118 mm blade comes with a blood drain which makes it lighter. This is DG - double guard version. Defender comes with black kydex sheath fitting the M.O.L.L.E. system.
₽17,755.71

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Fixed blade Knife Extrema Ratio S-THIL Black Warfare 0410000223BWSE 11.9cm
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Fixed blade Knife Extrema Ratio S-THIL Black Warfare 11.9cm 0410000223BWSE
Extrema Ratio S-THIL Black Warfare is a special version of the S-THIL model. Knife is made from a single piece of 5 mm thick BOHLER N690 steel, developed in collaboration with the designer Thilo Arnd Schiller. The spear point type blade. The special Black Warfare version of Extrema Ratio S-THIL uses the innovative and original Geotech Camo pattern, created by laser engraving.
₽24,752.24

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Tactical knife Extrema Ratio A.M.F. Black
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Fixed blade Knife Extrema Ratio A.M.F. Black 20.6cm 04.1000.0485BLK
Extrema Ratio A.M.F. (Advanced Multi Function) Black is a 20,6 cm blade knife inspired to a legend in the survival cutlery of the 80es. It can be easily disassembled. Comes with cordura sheath fitting the M.O.L.L.E. system. A survival kit (to be bought only on request) can be easily fixed to the cordura sheath. A.M.F. comes also in desert version.
₽31,676.44

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Neck knife Extrema Ratio Kiri Dark Stone 04.1000.0187/BLK-SW 6cm
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Fixed blade Knife Extrema Ratio Kiri Dark Stone 6cm 0410000187BLKSW
Neck knife Extrema Ratio Kiri Dark Stone 04.1000.0187/BLK-SW with 6cm blade. Kiridashi is a type of Japanese knife, a cutting multipurpose tool. Its asymmetric bevel, where only one of the two sides is ground and the other is left flat, is one of its features. This traditional Japanese knife has been recreated by Extrema Ratio in accordance with its style, giving it a more tactical appearance than the original. Both the Dark Stone and Satin finishes, made of Böhler N690 steel hardened to 58 HRC, are offered for the Extrema Ratio KIRI.
Two black anodized anticorodal metal scales make up the handle. The metal eyelets on the pre-shaped Kydex sheath allow you to attach it to an M.O.L.L.E. system webbing and insert a paracord.
₽19,859.39

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Dagger Extrema Ratio Adra Ordinanza 17 Stormo 17.8cm
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Fixed blade Knife Extrema Ratio Adra Ordinanza 17 Stormo 17.8cm
Extrema Ratio Adra Ordinanza 17 Stormo dagger with black oxide-coated blade 178 mm (7 in) and 17th Stormo logo, serrated partly. 
The “Arditi Distruttori della Regia Aeronautica” (lit. royal air force brave destroyers) were an Italian battalion serving in the North African theater during WW2, and awarded two silver medals of honor.
This ADRA dagger, with its classic European shape, was designed for and with strong input from the commanders and operatives of the 17th. Comes in in ABS engraved case with an ankle sheath and a sand-color parade belt sheath. Total length 311 mm (12.2 in). Weight 331 g (11.7 oz) 
₽47,438.51

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Folding knife Extrema Ratio BD4 Adra Contractor 041000498TM 12.3cm
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Folding knife Extrema Ratio BD4 Adra Contractor 12.3cm 041000498TM
Extrema Ratio BD4 Adra Contactor is available in a limited edition of 70 pieces. It comes inside a certified IP67 waterproof polypropylene technical case with pressurization valve resistant to atmospheric agents, dust and shocks; this includes a scroll outlining the past and present of the 17th Stormo Incursori of the Italian Air Force and a metal plate bearing the progressive number within the limited series.
₽26,105.29

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Folding knife Extrema Ratio T-Razor Black 04.1000.0138/BLK 10cm - 4
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Folding knife Extrema Ratio T-Razor Black 10cm 0410000138BLK
Extrema Ratio T-Razor with black coating. Up to the early 1900s, people commonly carried pocket utility knives. Due to rampant “misuse”, though, laws were passed to the effect that all such knives were to be clipped at the blade-tip, in order to diminish their dangerousness as weapons. Some people then figured they’d get the greatest effectiveness out of the sharp edge of a traditionally flat-point blade shape, and took to carrying straight-razors. Thus, the straight-razor was for a time regarded as a fearsome weapon of self-defense. Such a “misuse” of the common straight-razor inspired our T-RAZOR design. Available versions: T-RAZOR BLACK, T-RAZOR SATIN.
₽19,645.48

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Dagger Extrema Ratio Suppressor Operativo 0410000312BLK 17.6cm
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Fixed blade Knife Extrema Ratio Suppressor Operativo 17.6cm 0410000312BLK
Suppressor Operativo dagger from Extrema Ratio is the memorial dagger, issued to commemorate the thirtieth anniversary of the unit G.I.S., the renowned counter-terrorism unit of the Carabinieri (Italian military police). Black oxide-coated blade 176 mm (6,9 in), without logo, Böhler N690 steel. Side sheath included. Weight 302 g (10.7 oz)
₽38,605.66

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Folding knife Extrema Ratio MF1 Black 0410000133BLK 9.2cm
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Folding knife Extrema Ratio MF1 Black 9.2cm 0410000133BLK
Extrema Ratio MF1 Black medium folder. Blade length is 92 mm. Same as other Extrema Ratio knives this model has blade made of BÖHLER N690 steel. Anticorodal anodized aluminum handle. Extrema Ratio MF1 Black weights 166 g. 
₽24,138.06

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Tactical knife Extrema Ratio Fulcrum Bayonet NFG Desert
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Fixed blade Knife Extrema Ratio Fulcrum Bayonet NFG Desert SW 18cm 0410000310DW
A versatile and extremely tough knife Extrema Ratio Fulcrum Bayonet NFG Desert SW it is a light version of the standard Fulcrum Bayonet. It comes with wire cutter, stone washed blade, desert handle and desert nylon sheath.  This milestone among multipurpose knives, employed on a large scale in Afghanistan as standard issue equipment of the Italian “Nibbio” mission, originated with a COMALP Alpine Troops Command experimental project for renewing trooper equipment. 
₽25,051.80

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Extrema Ratio knives are a part of equipment of many special military units of Italy, the police and rescue services. Each model is developed very carefully and undergoes a series of rigorous tests before it is put into production. Extrema Ratio cooperates with the University of Perugia, where scientists conduct a number of studies determining the ergonomics of Extrema Ratio products and methods for improving it. The office of Extrema Ratio is located in Prato, Italy. Both Extreme Ratio tactical knives and EDC knives are distinguished by impeccable quality. Most knives are made of Austrian steel N690, which is famous for its high content of molybdenum and cobalt and is highly corrosion resistant. Due to this, N690 steel has increased strength and resists shock loads well. The most popular Extrema Ratio knives are Fulcrum, Col Moschin, RAO, Adra and others. Extrema Ratio also produces several lines of tactical folding knives: BF (basic folder), MF (medium folder), BD4, BD2 series and other knives. In our store you can buy Extrema Ratio tactical knives, as well as folding and EDC knives of this brand. MyGoodKnife is the official distributor of Extrema Ratio.