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Extrema Ratio

Extrema Ratio

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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  • Brand: Extrema Ratio
Search - Page 1/6 1-36 (207) items matched your search
Extrema Ratio - Caimano Nero automatic folding knife
LOW STOCK Extrema Ratio - Fat Boy, satin
LOW STOCK Extrema Ratio - Mato Grosso Satin
Extrema Ratio - N.K. 2
Extrema Ratio Extrema Ratio Extrema Ratio Extrema Ratio
Caimano Nero automatic folding knife Fat Boy, satin Mato Grosso Satin N.K. 2
Automatic knivesSurvival knivesMachetesNeck knives
Blade length: 3.74″Blade length: 8.27″Blade length: 12.17″Blade length: 1.57″
Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690

$375.70

$678.09

$373.86

$138.37

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N.K. 2 BlackN.K. 2 Desert WarfareN.K. 2 Stonewashed
LOW STOCK Extrema Ratio - N.K.3 K
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Extrema Ratio - RAO
LOW STOCK Extrema Ratio - Selvans Black, green sheath
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Extrema Ratio - Ferrum E Tactical Mud
Extrema Ratio Extrema Ratio Extrema Ratio Extrema Ratio
N.K.3 K RAO Selvans Black, green sheath Ferrum E Tactical Mud
Neck knivesTactical folding knivesSurvival knivesEDC Folding knives
Blade length: 2.76″Blade length: 4.72″Blade length: 6.1″Blade length: 2.95″
Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690

$173.19

$380.28

$424.26

$208.01

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N.K.3 K BlackN.K.3 K, stonewashedN.K.3 K, desert warfare
RAO BlackRAO Desert Warfare
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Extrema Ratio - Caimano Nero N.A. Tactical Mud
Extrema Ratio - S-THIL Black Warfare Special Edition
Extrema Ratio - Herring
Extrema Ratio - XXV ANNIVERSARY COIN
Extrema Ratio Extrema Ratio Extrema Ratio Extrema Ratio
Caimano Nero N.A. Tactical Mud S-THIL Black Warfare Special Edition Herring XXV ANNIVERSARY COIN
EDC Folding knivesCollectible KnivesCollectible Knives
Blade length: 3.74″Blade length: 4.69″Blade length: 6.57″
Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690

$300.56

$301.47

$540.64

$40.32

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Extrema Ratio - Misericordia Black Warfare Limited Edition
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LOW STOCK Extrema Ratio - T4000 S Satin
Extrema Ratio - Col Moschin Paper Knife with Base
Extrema Ratio - Glauca G1
Extrema Ratio Extrema Ratio Extrema Ratio Extrema Ratio
Misericordia Black Warfare Limited Edition T4000 S Satin Col Moschin Paper Knife with Base Glauca G1
Collectible KnivesSurvival knivesCollectible KnivesRescue folding knives
Blade length: 4.65″Blade length: 6.85″Blade length: 3.94″Blade length: 4.41″
Blade material: Böhler N690Blade material: Böhler N690Blade material: StainlessBlade material: Böhler N690

$309.72

$307.89

$64.14

$428.84

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Extrema Ratio - T4000 C
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Extrema Ratio - BD2 Lucky
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Extrema Ratio - BF2
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Extrema Ratio - Col Moschin Compact
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Extrema Ratio Extrema Ratio Extrema Ratio Extrema Ratio
T4000 C BD2 Lucky BF2 Col Moschin Compact
Tactical knivesTactical folding knivesEDC Folding knivesTactical knives
Blade length: 4.09″Blade length: 3.78″Blade length: 3.43″Blade length: 4.33″
Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690

$231.83

$174.10

$197.01

$251.99

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BD2 Lucky DesertBD2 Lucky Black
BF2 Drop Point BlackBF2 Tanto Point BlackBF2 Tanto Point Desert Warfare
Col Moschin Compact BlackCol Moschin Compact Desert Warfare
LOW STOCK Extrema Ratio - Contact
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LOW STOCK Extrema Ratio - Contact C
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Extrema Ratio - Dobermann IV S600
LOW STOCK Extrema Ratio - Fat Boy, Dark Wash
Extrema Ratio Extrema Ratio Extrema Ratio Extrema Ratio
Contact Contact C Dobermann IV S600 Fat Boy, Dark Wash
Tactical knivesTactical knivesHunting knivesSurvival knives
Blade length: 6.38″Blade length: 5.04″Blade length: 7.28″Blade length: 8.27″
Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler S600Blade material: Böhler N690

$257.49

$210.76

$371.12

$678.09

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Contact, desertContact, wolf greyContact, black
Contact C, wolf greyContact C, desertContact C, black
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LOW STOCK Extrema Ratio - Giant Mamba
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LOW STOCK Extrema Ratio - K1 Dobermann XXV Anniversarium
Extrema Ratio - Mato Grosso
LOW STOCK Extrema Ratio - N.K. 1
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Extrema Ratio Extrema Ratio Extrema Ratio Extrema Ratio
Giant Mamba K1 Dobermann XXV Anniversarium Mato Grosso N.K. 1
Tactical knivesCollectible KnivesMachetesNeck knives
Blade length: 6.42″Blade length: 8.27″Blade length: 12.09″Blade length: 1.77″
Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690

$251.08

$861.35

$364.70

$136.53

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Giant Mamba, blackGiant Mamba, hcsGiant Mamba, wolf grey
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N.K. 1 Desert WarfareN.K. 1 StonewashedN.K. 1 Black
LOW STOCK Extrema Ratio - Nimbus Ordinanza
LOW STOCK Extrema Ratio - RAO C Black
LOW STOCK Extrema Ratio - Satre expeditions
LOW STOCK Extrema Ratio - Sethlans Expeditions
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Extrema Ratio Extrema Ratio Extrema Ratio Extrema Ratio
Nimbus Ordinanza RAO C Black Satre expeditions Sethlans Expeditions
Tactical knivesTactical folding knivesSurvival knives
Blade length: 5.55″Blade length: 3.94″Blade length: 2.56″Blade length: 4.21″
Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690

$366.53

$292.31

$163.11

$393.11

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Extrema Ratio - 39-09 Special Edition
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Extrema Ratio - ANT Stonewash M390 Rescue, red
Extrema Ratio - ANT Stonewash N690
Extrema Ratio - Baseball Cap, black
Extrema Ratio Extrema Ratio Extrema Ratio Extrema Ratio
39-09 Special Edition ANT Stonewash M390 Rescue, red ANT Stonewash N690 Baseball Cap, black
Collectible KnivesEDC Folding knivesEDC Folding knivesTactical knives
Blade length: 7.6″Blade length: 1.97″Blade length: 1.97″
Blade material: Böhler N690Blade material: Böhler M390Blade material: Böhler N690

$739.48

$125.54

$108.13

$24.74

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Extrema Ratio - Caimano Nero automatic folding knife
Extrema Ratio –
Caimano Nero automatic folding knife
Automatic knives
Blade length: 3.74″
Blade material: Böhler N690
FREE shipping!
$375.70
LOW STOCK
Extrema Ratio - Fat Boy, satin
Extrema Ratio –
Fat Boy, satin
Survival knives
Blade length: 8.27″
Blade material: Böhler N690
FREE shipping!
$678.09
LOW STOCK
Extrema Ratio - Mato Grosso Satin
Extrema Ratio –
Mato Grosso Satin
Machetes
Blade length: 12.17″
Blade material: Böhler N690
FREE shipping!
$373.86
Extrema Ratio - N.K. 2
Extrema Ratio –
N.K. 2
Neck knives
Blade length: 1.57″
Blade material: Böhler N690
$138.37
LOW STOCK
Extrema Ratio - N.K.3 K
Extrema Ratio –
N.K.3 K
Neck knives
Blade length: 2.76″
Blade material: Böhler N690
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FREE shipping!
$173.19
Extrema Ratio - RAO
Extrema Ratio –
RAO
Tactical folding knives
Blade length: 4.72″
Blade material: Böhler N690
FREE shipping!
$380.28
LOW STOCK
Extrema Ratio - Selvans Black, green sheath
Extrema Ratio –
Selvans Black, green sheath
Survival knives
Blade length: 6.1″
Blade material: Böhler N690
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FREE shipping!
$424.26
Extrema Ratio - Ferrum E Tactical Mud
Extrema Ratio –
Ferrum E Tactical Mud
EDC Folding knives
Blade length: 2.95″
Blade material: Böhler N690
FREE shipping!
$208.01
Extrema Ratio - Caimano Nero N.A. Tactical Mud
Extrema Ratio –
Caimano Nero N.A. Tactical Mud
EDC Folding knives
Blade length: 3.74″
Blade material: Böhler N690
FREE shipping!
$300.56
Extrema Ratio - S-THIL Black Warfare Special Edition
Extrema Ratio –
S-THIL Black Warfare Special Edition
Collectible Knives
Blade length: 4.69″
Blade material: Böhler N690
FREE shipping!
$301.47
Extrema Ratio - Herring
Extrema Ratio –
Herring
Collectible Knives
Blade length: 6.57″
Blade material: Böhler N690
FREE shipping!
$540.64
Extrema Ratio - XXV ANNIVERSARY COIN
Extrema Ratio –
XXV ANNIVERSARY COIN
$40.32
Extrema Ratio - Misericordia Black Warfare Limited Edition
Extrema Ratio –
Misericordia Black Warfare Limited Edition
Collectible Knives
Blade length: 4.65″
Blade material: Böhler N690
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FREE shipping!
$309.72
LOW STOCK
Extrema Ratio - T4000 S Satin
Extrema Ratio –
T4000 S Satin
Survival knives
Blade length: 6.85″
Blade material: Böhler N690
FREE shipping!
$307.89
Extrema Ratio - Col Moschin Paper Knife with Base
Extrema Ratio –
Col Moschin Paper Knife with Base
Collectible Knives
Blade length: 3.94″
Blade material: Stainless
$64.14
Extrema Ratio - Glauca G1
Extrema Ratio –
Glauca G1
Rescue folding knives
Blade length: 4.41″
Blade material: Böhler N690
FREE shipping!
$428.84
Extrema Ratio - T4000 C
Extrema Ratio –
T4000 C
Tactical knives
Blade length: 4.09″
Blade material: Böhler N690
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FREE shipping!
$231.83
Extrema Ratio - BD2 Lucky
Extrema Ratio –
BD2 Lucky
Tactical folding knives
Blade length: 3.78″
Blade material: Böhler N690
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FREE shipping!
$174.10
Extrema Ratio - BF2
Extrema Ratio –
BF2
EDC Folding knives
Blade length: 3.43″
Blade material: Böhler N690
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FREE shipping!
$197.01
Extrema Ratio - Col Moschin Compact
Extrema Ratio –
Col Moschin Compact
Tactical knives
Blade length: 4.33″
Blade material: Böhler N690
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FREE shipping!
$251.99
LOW STOCK
Extrema Ratio - Contact
Extrema Ratio –
Contact
Tactical knives
Blade length: 6.38″
Blade material: Böhler N690
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FREE shipping!
$257.49
LOW STOCK
Extrema Ratio - Contact C
Extrema Ratio –
Contact C
Tactical knives
Blade length: 5.04″
Blade material: Böhler N690
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FREE shipping!
$210.76
Extrema Ratio - Dobermann IV S600
Extrema Ratio –
Dobermann IV S600
Hunting knives
Blade length: 7.28″
Blade material: Böhler S600
FREE shipping!
$371.12
LOW STOCK
Extrema Ratio - Fat Boy, Dark Wash
Extrema Ratio –
Fat Boy, Dark Wash
Survival knives
Blade length: 8.27″
Blade material: Böhler N690
FREE shipping!
$678.09
LOW STOCK
Extrema Ratio - Giant Mamba
Extrema Ratio –
Giant Mamba
Tactical knives
Blade length: 6.42″
Blade material: Böhler N690
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FREE shipping!
$251.08
LOW STOCK
Extrema Ratio - K1 Dobermann XXV Anniversarium
Extrema Ratio –
K1 Dobermann XXV Anniversarium
Collectible Knives
Blade length: 8.27″
Blade material: Böhler N690
FREE shipping!
$861.35
Extrema Ratio - Mato Grosso
Extrema Ratio –
Mato Grosso
Machetes
Blade length: 12.09″
Blade material: Böhler N690
FREE shipping!
$364.70
LOW STOCK
Extrema Ratio - N.K. 1
Extrema Ratio –
N.K. 1
Neck knives
Blade length: 1.77″
Blade material: Böhler N690
TrustPilot star
$136.53
LOW STOCK
Extrema Ratio - Nimbus Ordinanza
Extrema Ratio –
Nimbus Ordinanza
Tactical knives
Blade length: 5.55″
Blade material: Böhler N690
FREE shipping!
$366.53
LOW STOCK
Extrema Ratio - RAO C Black
Extrema Ratio –
RAO C Black
Tactical folding knives
Blade length: 3.94″
Blade material: Böhler N690
FREE shipping!
$292.31
LOW STOCK
Extrema Ratio - Satre expeditions
Extrema Ratio –
Satre expeditions
Blade length: 2.56″
Blade material: Böhler N690
FREE shipping!
$163.11
LOW STOCK
Extrema Ratio - Sethlans Expeditions
Extrema Ratio –
Sethlans Expeditions
Survival knives
Blade length: 4.21″
Blade material: Böhler N690
TrustPilot star
FREE shipping!
$393.11
Extrema Ratio - 39-09 Special Edition
Extrema Ratio –
39-09 Special Edition
Collectible Knives
Blade length: 7.6″
Blade material: Böhler N690
TrustPilot star
FREE shipping!
$739.48
Extrema Ratio - ANT Stonewash M390 Rescue, red
Extrema Ratio –
ANT Stonewash M390 Rescue, red
EDC Folding knives
Blade length: 1.97″
Blade material: Böhler M390
$125.54
Extrema Ratio - ANT Stonewash N690
Extrema Ratio –
ANT Stonewash N690
EDC Folding knives
Blade length: 1.97″
Blade material: Böhler N690
$108.13
Extrema Ratio - Baseball Cap, black
Extrema Ratio –
Baseball Cap, black
Tactical knives
$24.74
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