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Extrema Ratio knives and folding knives

Extrema Ratio, located in Prato, Italy has been designing, manufacturing and selling high-quality combat knives since 1997. The company gained a great reputation for excellence that is unsurpassed in the military and tactical industry. The company prides itself in design, material and quality to deliver a high end product that meets the most severe standards. The first class handwork and well-selected material have contributed to form the image of the Extrema Ratio trademark all over the world.

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Extrema Ratio - Estrema Hammer
Extrema Ratio - MH-Stealth
Extrema Ratio - Requiem EVO Dark
Extrema Ratio - ANT SP Tactical Mud
Extrema Ratio Extrema Ratio Extrema Ratio Extrema Ratio
Estrema Hammer MH-Stealth Requiem EVO Dark ANT SP Tactical Mud
Blade length: 3.39″Blade length: 4.57″Blade length: 1.81″
Blade material: Böhler N690Blade material: MagnaCutBlade material: Böhler N690

$190.28

$332.75

$409.24

$119.52

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Extrema Ratio - Misericordia Black Warfare Limited Edition
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Extrema Ratio - ANT SP Ranger Green
Extrema Ratio - ANT SP Total Black
Extrema Ratio - ANT Urban Neon SF Yellow
Extrema Ratio Extrema Ratio Extrema Ratio Extrema Ratio
Misericordia Black Warfare Limited Edition ANT SP Ranger Green ANT SP Total Black ANT Urban Neon SF Yellow
Blade length: 4.65″Blade length: 1.81″Blade length: 1.81″Blade length: 2.01″
Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690

$323.19

$119.52

$124.30

$129.08

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Extrema Ratio - LKU01 Urban Dark
Extrema Ratio - LKU01 Urban Sideral
Extrema Ratio - Misericordia Black
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Extrema Ratio - Resolza 12
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Extrema Ratio Extrema Ratio Extrema Ratio Extrema Ratio
LKU01 Urban Dark LKU01 Urban Sideral Misericordia Black Resolza 12
Blade length: 3.94″Blade length: 3.94″Blade length: 4.65″Blade length: 4.72″
Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690

$218.96

$218.96

$199.84

$219.92

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Extrema Ratio - Shrapnel One Desert Dark Stone
Extrema Ratio - 39-09 Special Edition
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Extrema Ratio - BD4 Lucky
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Extrema Ratio - BF1
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Extrema Ratio Extrema Ratio Extrema Ratio Extrema Ratio
Shrapnel One Desert Dark Stone 39-09 Special Edition BD4 Lucky BF1
Blade length: 6.18″Blade length: 7.6″Blade length: 4.84″Blade length: 2.72″
Blade material: N690Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690

$291.63

$771.63

$234.26

$189.32

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Extrema Ratio - BF2
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Extrema Ratio - BF2 CT M390 Tactical Grey
Extrema Ratio - BF2 Helmsman
Extrema Ratio - Caimano Nero automatic folding knife
Extrema Ratio Extrema Ratio Extrema Ratio Extrema Ratio
BF2 BF2 CT M390 Tactical Grey BF2 Helmsman Caimano Nero automatic folding knife
Blade length: 3.43″Blade length: 3.43″Blade length: 3.43″Blade length: 3.74″
Blade material: Böhler N690Blade material: M390Blade material: Böhler N690Blade material: Böhler N690

$224.70

$296.41

$282.07

$415.94

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Extrema Ratio - Caimano Nero N.A. manual folder
Extrema Ratio - Col Moschin
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Extrema Ratio - Contact
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Extrema Ratio - Diamond Pocket Sharpener
Extrema Ratio Extrema Ratio Extrema Ratio Extrema Ratio
Caimano Nero N.A. manual folder Col Moschin Contact Diamond Pocket Sharpener
Blade length: 3.74″Blade length: 6.3″Blade length: 6.38″
Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690

$329.88

$380.56

$289.72

$23.90

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Extrema Ratio - Dobermann IV S600
Extrema Ratio - Dobermann IV Tactical
Extrema Ratio - Estrema
Extrema Ratio - Glauca G1
Extrema Ratio Extrema Ratio Extrema Ratio Extrema Ratio
Dobermann IV S600 Dobermann IV Tactical Estrema Glauca G1
Blade length: 7.28″Blade length: 7.17″Blade length: 3.15″Blade length: 4.41″
Blade material: Böhler S600Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690

$411.16

$377.69

$755.38

$457.05

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Extrema Ratio - Kreios
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Extrema Ratio - Mamba
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Extrema Ratio - MF1 EVO Drop Point Red Satin M390
Extrema Ratio - N.K.3 K
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Extrema Ratio Extrema Ratio Extrema Ratio Extrema Ratio
Kreios Mamba MF1 EVO Drop Point Red Satin M390 N.K.3 K
Blade length: 11.81″Blade length: 4.57″Blade length: 3.74″Blade length: 2.76″
Blade material: Böhler N690Blade material: Böhler N690Blade material: M390Blade material: Böhler N690

$473.31

$164.46

$304.06

$191.24

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Extrema Ratio - Ontos II S600, black
Extrema Ratio - RAO 2 Expeditions
Extrema Ratio - RAO C Black
Extrema Ratio - Requiem M390 Black Stonewashed
Extrema Ratio Extrema Ratio Extrema Ratio Extrema Ratio
Ontos II S600, black RAO 2 Expeditions RAO C Black Requiem M390 Black Stonewashed
Blade length: 6.57″Blade length: 4.61″Blade length: 3.94″Blade length: 4.65″
Blade material: Böhler S600Blade material: Böhler N690Blade material: Böhler N690Blade material: M390

$417.85

$453.23

$334.66

$218.96

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Extrema Ratio - Estrema Hammer
Extrema Ratio –
Estrema Hammer
$190.28
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Extrema Ratio - MH-Stealth
Extrema Ratio –
MH-Stealth
Blade length: 3.39″
Blade material: Böhler N690
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$332.75
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Extrema Ratio - Requiem EVO Dark
Extrema Ratio –
Requiem EVO Dark
Blade length: 4.57″
Blade material: MagnaCut
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$409.24
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Extrema Ratio - ANT SP Tactical Mud
Extrema Ratio –
ANT SP Tactical Mud
Blade length: 1.81″
Blade material: Böhler N690
$119.52
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Extrema Ratio - Misericordia Black Warfare Limited Edition
Extrema Ratio –
Misericordia Black Warfare Limited Edition
Blade length: 4.65″
Blade material: Böhler N690
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$323.19
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Extrema Ratio - ANT SP Ranger Green
Extrema Ratio –
ANT SP Ranger Green
Blade length: 1.81″
Blade material: Böhler N690
$119.52
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Extrema Ratio - ANT SP Total Black
Extrema Ratio –
ANT SP Total Black
Blade length: 1.81″
Blade material: Böhler N690
$124.30
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Extrema Ratio - ANT Urban Neon SF Yellow
Extrema Ratio –
ANT Urban Neon SF Yellow
Blade length: 2.01″
Blade material: Böhler N690
$129.08
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Extrema Ratio - LKU01 Urban Dark
Extrema Ratio –
LKU01 Urban Dark
Blade length: 3.94″
Blade material: Böhler N690
$218.96
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Extrema Ratio - LKU01 Urban Sideral
Extrema Ratio –
LKU01 Urban Sideral
Blade length: 3.94″
Blade material: Böhler N690
$218.96
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Extrema Ratio - Misericordia Black
Extrema Ratio –
Misericordia Black
Blade length: 4.65″
Blade material: Böhler N690
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$199.84
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Extrema Ratio - Resolza 12
Extrema Ratio –
Resolza 12
Blade length: 4.72″
Blade material: Böhler N690
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$219.92
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Extrema Ratio - Shrapnel One Desert Dark Stone
Extrema Ratio –
Shrapnel One Desert Dark Stone
Blade length: 6.18″
Blade material: N690
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$291.63
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Extrema Ratio - 39-09 Special Edition
Extrema Ratio –
39-09 Special Edition
Blade length: 7.6″
Blade material: Böhler N690
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$771.63
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Extrema Ratio - BD4 Lucky
Extrema Ratio –
BD4 Lucky
Blade length: 4.84″
Blade material: Böhler N690
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$234.26
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Extrema Ratio - BF1
Extrema Ratio –
BF1
Blade length: 2.72″
Blade material: Böhler N690
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$189.32
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Extrema Ratio - BF2
Extrema Ratio –
BF2
Blade length: 3.43″
Blade material: Böhler N690
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$224.70
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Extrema Ratio - BF2 CT M390 Tactical Grey
Extrema Ratio –
BF2 CT M390 Tactical Grey
Blade length: 3.43″
Blade material: M390
FREE shipping!
$296.41
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Extrema Ratio - BF2 Helmsman
Extrema Ratio –
BF2 Helmsman
Blade length: 3.43″
Blade material: Böhler N690
FREE shipping!
$282.07
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Extrema Ratio - Caimano Nero automatic folding knife
Extrema Ratio –
Caimano Nero automatic folding knife
Blade length: 3.74″
Blade material: Böhler N690
FREE shipping!
$415.94
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Extrema Ratio - Caimano Nero N.A. manual folder
Extrema Ratio –
Caimano Nero N.A. manual folder
Blade length: 3.74″
Blade material: Böhler N690
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$329.88
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Extrema Ratio - Col Moschin
Extrema Ratio –
Col Moschin
Blade length: 6.3″
Blade material: Böhler N690
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$380.56
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Extrema Ratio - Contact
Extrema Ratio –
Contact
Blade length: 6.38″
Blade material: Böhler N690
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$289.72
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Extrema Ratio - Diamond Pocket Sharpener
Extrema Ratio –
Diamond Pocket Sharpener
$23.90
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Extrema Ratio - Dobermann IV S600
Extrema Ratio –
Dobermann IV S600
Blade length: 7.28″
Blade material: Böhler S600
FREE shipping!
$411.16
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Extrema Ratio - Dobermann IV Tactical
Extrema Ratio –
Dobermann IV Tactical
Blade length: 7.17″
Blade material: Böhler N690
FREE shipping!
$377.69
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Extrema Ratio - Estrema
Extrema Ratio –
Estrema
Blade length: 3.15″
Blade material: Böhler N690
FREE shipping!
$755.38
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Extrema Ratio - Glauca G1
Extrema Ratio –
Glauca G1
Blade length: 4.41″
Blade material: Böhler N690
FREE shipping!
$457.05
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Extrema Ratio - Kreios
Extrema Ratio –
Kreios
Blade length: 11.81″
Blade material: Böhler N690
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$473.31
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Extrema Ratio - Mamba
Extrema Ratio –
Mamba
Blade length: 4.57″
Blade material: Böhler N690
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$164.46
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Extrema Ratio - MF1 EVO Drop Point Red Satin M390
Extrema Ratio –
MF1 EVO Drop Point Red Satin M390
Blade length: 3.74″
Blade material: M390
FREE shipping!
$304.06
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Extrema Ratio - N.K.3 K
Extrema Ratio –
N.K.3 K
Blade length: 2.76″
Blade material: Böhler N690
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$191.24
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Extrema Ratio - Ontos II S600, black
Extrema Ratio –
Ontos II S600, black
Blade length: 6.57″
Blade material: Böhler S600
FREE shipping!
$417.85
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Extrema Ratio - RAO 2 Expeditions
Extrema Ratio –
RAO 2 Expeditions
Blade length: 4.61″
Blade material: Böhler N690
FREE shipping!
$453.23
Go to cart >>
Extrema Ratio - RAO C Black
Extrema Ratio –
RAO C Black
Blade length: 3.94″
Blade material: Böhler N690
FREE shipping!
$334.66
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Extrema Ratio - Requiem M390 Black Stonewashed
Extrema Ratio –
Requiem M390 Black Stonewashed
Blade length: 4.65″
Blade material: M390
$218.96
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