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Extrema Ratio

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12 Items

  1. ExtremaRatio - Bayonet O.D. Green Civile NFG Fulcrum knife - Testudo - knife

    After the success of the FULCRUM multirole knife, the civil bayonet version NFG (No Fixing Gears, without rifle attachment) was born. Like the FULCRUM, the bayonet is an extremely robust and versatile knife, the blade withstands breaking loads exceeding 150 kg, the tip is very robust and the profile allows you to work for a long time with the knife without affecting the sharpness of the last section . The advanced center of gravity and the weight of the blade make it suitable for heavy field work.

    Intended use: tactical / military / multirole

    Blade: N690Co 58HRC stainless steel
    Handle: removable, in Forprene
    Blade length: 180mm.
    Blade thickness: 6.3mm.
    Closed Length: -
    Total length: 310mm.
    Balance: advanced, 1.5 cm from the lower guard branch
    Weight: 330g.
    Closing: -
    Clip: -
    Sheath: modular tactical, from thigh or belt, in Nylon and Kydex, with blade attachment system for cutting with wire cutters
    Notes: diamond sharpener integrated in the sheath - civil version, without rifle couplings

    ER-FBN-GR
    €395.08
    Only 99 left
    Only 99 left
  2. ExtremaRatio - Fulcrum Bayonet NFG Black - Knife

    After the success of the FULCRUM multi-role knife, the bayonet version was born. Like the FULCRUM, the bayonet is an extremely robust and versatile knife, the blade holds loads at break above 150 kg, the tip is very sturdy and the profile allows it to work for a long time with the knife without affecting the sharpening of the last section , which guarantees, together with the partial dorsal sharpening, to maintain the penetration capacity necessary for hand-to-hand combat against targets covered by heavy clothing, clothing and soft ballistic protections. The advanced center of gravity and the weight of the blade make it suitable for heavy field work. NFG version (No Fixing Gears, without rifle mount).

    Intended use: tactical / military / multi-role

    Blade: full tang in stainless steel N690Co 58HRC
    Handle: removable in Forprene
    Blade length: 180mm.
    Blade thickness: 6.3mm.
    Total length: 310mm.
    Balancing: advanced, 1.5 cm from the lower guard branch
    Weight: 378g.
    Sheath: modular tactile with thread trimmer, thigh or belt, in Nylon and Kydex

    ER-FBN-BK
    €395.08
    Only 99 left
    Only 99 left
  3. ExtremaRatio - Fulcrum Bayonet knife NFG Desert SW - knife

    Model: Lightened version of the classic Fulcrum Bayonet, with shearder, stone washed blade, desert handle and desert nylon sheath.

    Intended use: tactical / military / multi-role

    Blade: full tang in stainless steel N690Co 58HRC
    Handle: dismountable in Forprene
    Blade length: 180mm.
    Blade thickness: 6.3mm.
    Length closed: -
    Total length: 310mm.
    Balancing: advanced, 1.5 cm from the lower guard branch
    Weight: 378g.
    Closure: -
    Clip: -
    Sheath: modular tactical with shear, thigh or belt, in Nylon and Kydex
    Note: -

    ER-FBN-DE
    €269.67
    Only 99 left
    Only 99 left
    Rating:
    100%
    5
    Out of stock
  4. ExtremaRatio - 185° RAO AVIO - knife

    RAO ACQUIRED FROM VERSION 'AIR FORCE

    Intended Use: Military / Tactical

    Type of production: industrial
    Production Blade: Italy
    Blade: Stainless steel N690Co 58/60HRC
    Treatment Blade: testudo
    Handle: non corroding 4.5mm
    Blade length: 118mm.
    Blade Thickness: 6.3mm.
    Length closed: 142
    Total length: 261mm.
    Balance: -
    Weight: 335g.
    Closure: front lock changed - safety pin threaded
    Clip: -
    Pouch: Comes with a special survival kit that attaches to the knife sheath with MOLLE system
    The kit contains whistle, compass, rope, flint, water purification tablets, chain saw, brass wire, torch, diamond sharpener.
    One version is produced with black knife sheath and green.

    The sheath is used only with the knife open.

    Notes: logos departments on the blade

    ER-RAO-AV
    €408.20
    Only 1 left
    Only 1 left
    Rating:
    100%
    5
  5. Extrema Ratio - Fulcrum Desert Warfare - knife

    Intended use: tactical / military / multirole
    Blade: full tang stainless steel N690Co 58HRC Desert Warfare
    Handle: Removable in Forprene
    Blade length: 180mm.
    Blade Thickness: 6.3mm.
    Closed Length: -
    Overall length: 310mm.
    Balancing: Advanced, 1.5 cm from the branch of the lower guard
    Weight: 325g.
    Closed: -
    Clip: -
    Sheath: modular tactical, from thigh or belt, Nylon and Kydex
    Notes: -

    ER-FUL-DW
    €309.84
    Only 1 left
    Only 1 left
    Rating:
    93%
    4.7
  6. ExtremaRatio - Fulcrum Nibbio - Italian Army - Testudo - knife

    Knife distributed in 2000 pieces to the Alpine Body of the Italian Army as part of the "Nibbio" operation in Afghanistan

    Target for use: tactical / military / multiruolo

    Blade: full tang in stainless steel N690Co 58HRC
    Manicure: Removable in Forprene
    Blade Length: 180mm.
    Blade thickness: 6.3mm.
    Closed length: -
    Total Length: 310mm.
    Balancing: advanced, 1.5 cm from the lower guard branch
    Weight: 325g.
    Closure: -
    Clip: -
    Sheath: modular tactical, thigh or belt, in Nylon and Kydex
    Notes: -

    ER-FUL-EI
    €299.18
    Only 1 left
    Only 1 left
    Rating:
    93%
    4.7
  7. ExtremaRatio - Landing Force Titanium - Italian Army Landing Troops - PRIVATE COLLECTION - knife

    Knife from private collection - Very rare knife from 2015, discontinued for several years, in min conditions - Comes with original packaging (box, protective plastics, manuals) and accessories (sheath and straps) - Never used, with original factory sharpening - Checked and certified by our in-house laboratory.

    Multi-role non-magnetic knife, developed and officially acquired by the landing troops of the Italian Army. Totally titanium blade and tang make the knife particularly resistant to oxidation and usable for magnetic trigger buried ordnance search (mine probing).


    Intended Use: Tactical / Military / Sub / Amphibious

    Production type: Industrial
    Country of Production: Italy
    Blade: Titanium Beta 40HRC
    Blade Finish: Burnishing
    Handle: Forprene
    Blade Length: 180mm.
    Blade thickness: 6.3mm.
    Total length: 310mm.
    Weight: 195g.
    Sheath: Desert nylon, with ABS hard shell; M.O.L.L.E. type thigh straps and attachments.
    Packaging: Cardboard box, certificates, manuals
    Notes: Widia glass breaker on rear tang.

    ER-LFT-CP
    €0.00
    Only -50 left
    Only -50 left
    Out of stock
  8. 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
  9. ExtremaRatio - 185 ° RAO in Sanmai Japanese steel - knife

    Folding knife made upon specific requests of the department of the Italian Army 185 ° RAO ( Target Acquisition Regiment ) and is now included the eponymous department . The knife supplied differs from the calendar for the total lack of writings or logos on the blade.

    Limited Edition RAO model characterized by a satin blade in Japanese rolled steel produced by Takefu Steel. to the central plate and the 420J2 (56 HRC) In the specific CoS it is used to 61,5HRC (Cobalt Special deemed superior mechanically by 25% compared to the already appreciated VG10) for the two side plates, in order to have a very high capacity cutting but at the same time a remarkable resilience and resistance to oxidation.
    folding knife made upon specific requests of the Italian Department of the Army 185th RAO (Regiment Acquisition Objectives) and currently supplied to the homonymous department. The knife supplied differs from that only civil to the total lack of written or logos on the blade.


    Intended Use: Military / Tactical

    Type of production: Industrial
    Production Lama: Italy
    Blade: (San Mai) Japanese-rolled stainless steel with sharp CoS to 61,5HRC in cryogenic tempering
    Lama Treatment: Testudo
    Handle material: anticorodal 4.5mm
    Blade length: 118mm.
    Blade Thickness: 6.3mm.
    Length closed: 142
    Overall length: 261mm.
    Balancing: -
    Weight: 335g.
    Closure: front modified lock - threaded safety pin
    Clip: -
    Sheath: tactical nylon by Vega with M.O.L.L.E. attacks suitable for both the closed knife that open - color BLACK
    Notes: sharpening the included Diamond

     

    RAO-SANMAI
    €385.24
    Rating:
    91%
    4.6
    Out of stock
  10. ExtremaRatio - 185° RAO - 2018 Version - heavy folding knife

    New version 2018 with improved grip: uses the same handle as the RAO II model

    Folding knife made to specific requests of the Italian Army department 185 ° RAO (Regiment Acquisition Objectives) and currently supplied to the homonymous department. The supplied knife differs from the civil one only because of the total lack of writing or logos on the blade.

    HISTORICAL SUMS ON THE DEPARTMENT:
    The 185 ° RAO of the '' Folgore '' is a department with an ancient tradition, but very new. In fact, it was born on April 3, 2000 following the reconfiguration of the 185th terrestrial paratroop artillery regiment. Based in Livorno, it is an atypical department of the artillery weapon, currently inserted in the Special Forces basin.

    Entirely composed of voluntary personnel, the 185th RAO selects its components through the passing of a physical test and a qualification course on modules '' with increasing difficulty ''. The tasks entrusted to the RAO's men are many, but all very delicate: it is about gathering information on enemy objectives and 'passing them' to one's command. More generally, it can talk about '' recognition in sensitive areas ''. '' It is therefore evident - they stress to the Army - that the activity of the acquirer takes place mainly in hostile territory, in small self-sufficient nuclei that act in isolation ''.

    RAO paratroopers are specialists in '' infiltration and exfiltration '' techniques and are able to move in the operating area '' for up to 8-10 days without external supplies ''. They know how to 'escape from capture, escape and escape from an' enemy controlled area '' and, above all, as '' identify, determine and evaluate objectives '' of strategic interest. Since 2002, the year of reconfiguration, the 185th Regiment detachments have operated in all the hottest operational theaters: from the Balkans to Afghanistan, to Iraq. Here they mainly carry out surveys for medium and long-range information purposes and for monitoring the area of ​​responsibility of the Italian contingent.

    Destination of use: military / tactical

    Type of production: industrial
    Lama production: Italy
    Blade: stainless steel N690Co 58 / 60HRC
    Blade treatment: burnishing MIL-C 13924
    Handle: 4.5mm anticorodal aluminum anodized
    Blade length: 118mm.
    Blade thickness: 6.3mm.
    Length closed: 142mm.
    Total length: 261mm.
    Weight: 335g.
    Closure: modified front lock with additional threaded security pin
    Clip: absent
    Sheath: tactical Nylon compatible M.O.L.L.E. suitable both for the closed and open knife
    Notes: diamond pocket sharpener included

    ER-RAO-BK
    €326.23
    Only 0 left
    Only 0 left
    Rating:
    96%
    4.8
    Out of stock
  11. ExtremaRatio - 185° RAO Desert Warfare - knife

    RAO ACQUIRED FROM VERSION ' AIR FORCE
    Folding knife made upon specific requests of the department of the Italian Army 185 ° RAO ( Target Acquisition Regiment ) and is now included the eponymous department . The knife supplied differs from the calendar for the total lack of writings or logos on the blade.

    HISTORY ON THE DEPARTMENT :
    The 185 ° RAO of the'' Thunderbolt '' and ' a department from the ancient tradition, but brand new . It was born April 3, 2000 following the reconfiguration of the 185 ° paratroopers land-based artillery regiment . Headquartered in Livorno, and ' a department atypical weapon of Artillery, currently placed in the basin of the Special Forces .

    Composed entirely of volunteers , the 185 ° RAO selects its members through passing a physical test and a qualification course of modules '' in difficulty ' growing .'' The tasks assigned to the men of RAO are varied, but all delicate : it is to gather information on enemy targets and ' pass ' at his command . More 'in general , can' talk of '' reconnaissance '' in sensitive areas . '' E ' therefore obvious - underline the Army - that the activities ' of the buyer to occur mainly in hostile territory , in small groups acting on their own self-sufficient .''

    The paratroopers of the RAO are specialists in the techniques of infiltration and exfiltration '' '' and are able to move into operational area '' up to 8-10 days without external supplies .'' '' They know how to evade capture , escape and escape from an ' area controlled by the enemy '' and, above all , as'' detect, determine and evaluate the objectives '' of strategic interest. Since 2002 , the year of reconfiguration , the detachments of the 185 th Regiment operated in all theaters of operation more ' hot : from the Balkans to Afghanistan, Iraq . Here performing reconnaissance especially for informational purposes in the medium and long-range surveillance of the area of responsibility ' of the Italian contingent .

    Intended Use: Military / Tactical

    Type of production : industrial
    Production Blade: Italy
    Blade: Stainless steel N690Co 58/60HRC Desert Warfare
    Treatment Blade: GeoCamo
    Handle : non corroding 4.5mm
    Blade length: 118mm .
    Blade Thickness: 6.3mm .
    Length closed: 142
    Total length: 261mm .
    Balance: -
    Weight: 335g .
    Closure: front lock changed - safety pin threaded
    Clip: -
    Sheath: tactical nylon attacks by Vega Holster with MOLLE suitable for both closed and open the knife - colored desert
    Notes: diamond sharpener included

    ER-RAO-DW
    €340.98
    Only 0 left
    Only 0 left
    Rating:
    100%
    5
    Out of stock
  12. ExtremaRatio - Landing Force Titanium - Italian Army troops landing - knife

    Knife multirole nonmagnetic, developed and officially acquired by landing troops of the Italian Army. Blade and tang totally titanium make the knife resistant to oxidation and can be used to search for bombs buried all'innesco magnetic (mine probing).

    Intended use: Tactical / Amphibian

    Type of production: Industrial
    Blade Production: Italy
    Blade: Titanium Beta 40HRC
    Treatment blade: Testudo
    Handle: Forprene
    Blade length: 180mm.
    Blade thickness: 6.3mm.
    Length closed: -
    Overall length: 310mm.
    Thick when closed: -
    Balancing: -
    Weight: 195g.
    Closing: -
    Clip: -
    Sheath: Nylon desert, with hard shell in ABS; leg straps and attacks M.O.L.L.E.
    Packaging: Cardboard box, certificates, manuals
    Notes: carbide glass breaker in the rear shank

    4359
    €342.62
    Only -99 left
    Only -99 left
    Out of stock
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