Extrema Ratio Fixed Blade Knives

Current Deals & Offers

Optics Planet Updated Oct 31, 2026

Extrema Ratio Herring Fixed Blade Knife 6.5in Bohler N690 Stainless Steel Dagger Blade Brass Handle

$620.00

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Optics Planet Updated Oct 31, 2026

9% OFF

Extrema Ratio Ermes Ordinanza Fixed Blade Knife 5.5in Satin Finish Bohler N690 Stainless Steel Clip Point FRN Black Handle

$429.99 $474.00

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Optics Planet Updated Oct 31, 2026

10% OFF

Extrema Ratio Ermes Operativo Fixed Blade Knife 5.5in Black Finish Bohler N690 Stainless Steel Spear Point FRN Black Handle

$389.99 $435.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio K-Talon Fixed Blade Knife 2.75in Bohler N690 Stainless Steel Karambit Blade Aluminum Black Handle

$299.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Satre Fixed Blade Knife 2.75in Black Finish Bohler S600 Steel Spear Point Bohler S600 Steel Handle

$192.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Selvan Knife w. Cobalt Blade EX

$449.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Selvans Expeditions Fixed Blade Knife 6.3in N690 Stainless Blade Tanto Forprene Tan Handle

$497.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Fulcrum C FH Fixed Blade Knife 4.25in N690 Stainless Tanto Blade Tan Forprene Handle

$293.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Selvans Fixed Blade Knife 6.25in Bohler N690 Stainless Steel Tanto Blade Forprene Tan Handle

$492.00

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Blade HQ Updated Oct 31, 2026

Extrema Ratio NK1 Fixed Blade Neck Knife Desert Warfare (1.75" Black)

$146.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio N.K. 1 Fixed Blade Knife Black (2" Black)

$138.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio N.K. 1 Fixed Blade Knife (2" Stonewash)

$127.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Fulcrum C Fixed Blade Knife Tan Folprene (4.3" Geo Camo Tan/Black)

$258.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Col Moschin C Fixed Blade Knife Black Forprene (4.25" Black)

$258.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Shrapnel OG Fixed Blade Knife Tan Forprene (4.25" Tan Camo)

$256.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Fulcrum C Testudo Fixed Blade Knife (4.3" Black Serr)

$286.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Shrapnel Fixed Blade Knife Black Forprene (3.75" Black Testudo)

$235.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Task C Desert Warfare Fixed Blade Tan Forprene (4.25" Tan Camo)

$215.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio MK2.1 Desert Warfare Fixed Blade Knife Tan Forprene (7" Tan Camo)

$430.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Col Moschin Desert Warfare Fixed Blade Knife Tan (6.3" Black/ Tan)

$417.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Waki Fixed Blade Knife Black (11.7" Black)

$416.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Arditi Fixed Blade Knife Black Polymer (6.5" Black)

$395.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio MK2.1 Fixed Blade Knife Black Nylon (7" Black)

$392.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Ontos Fixed Blade Knife Black Forprene (6.5" Black)

$384.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio RAO 185 Tactical Survival Knife (4.72" Black Plain)

$380.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Col Moschin Fixed Blade Knife Black Forprene Polymer (6.25 Black)

$380.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio KS Kukri Fixed Blade Knife Black Forprene (9.5" Black)

$467.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Dobermann IV Fixed Blade Knife Black Forprene (7.25" Black)

$363.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Fulcrum Fixed Blade Knife Black Forprene (7" Black Serr)

$351.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Fulcrum S Tactical Fixed Blade Knife Black Forprene (6" Black)

$347.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio T4000 S Tanto Fixed Blade Knife Black Forprene (7" Black)

$289.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Col Moschin C Fixed Blade Knife Tan Forprene (4.25" Black)

$273.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Contact Fixed Blade Knife Ranger Tan Forprene (6.38" SW)

$259.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Suppressor Ordinanza GIS Fixed Blade Knife Black Nylon (7" Black)

$499.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Suppressor Operativo Fixed Blade Knife Black Nylon (7" Black)

$499.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Adra Ord 17 - Stormo Fixed Blade Knife Black Nylon (7" Black)

$613.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Doberman IV South Africa Fixed Blade Knife Wood (7.25 " Satin)

$626.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Adra Operativo Fixed Blade Knife Black Nylon (7" Black)

$499.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Primo Corso Fixed Blade Knife Brown Leather (7" Black)

$474.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Fulcrum Bayonet Fixed Blade Knife OD Green Forprene (7.1" Black)

$495.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio KH Kukri Fixed Blade Knife Black Forprene (13.375" Black)

$578.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Kreios Fixed Blade Knife Black Forprene (12.75" Black)

$451.00

10% off With Code GEARCHASE10

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Blade HQ Updated Oct 31, 2026

Extrema Ratio Selvan Desert Fixed Blade Knife Tan Forprene (6.25" Black)

$449.00

10% off With Code GEARCHASE10

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Satre Neck SW Fixed Blade Knife 6.38in N690 stainless Blade Black Paracord Handle

$165.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Satre Fixed Blade Knife 6.38in N690 Stainless Blade Black Paracord Handle

$171.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Satre Expedition Fixed Blade Knife 6.38in N690 Stainless Blade Desert Camo Handle

$196.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio DMP Fixed Blade Knife 11.13in N690 Stainless Blade Ranger Green Forprene Handle

$305.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio K-Talon SW Fixed Blade Knife 2.75in N690 Stainless Karambit Blade Black Anodized Aluminum Handle

$310.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio DMP Fixed Blade Knife 11.13in N690 Stainless Blade Black Forprene Handle

$333.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Fulcrum S Fixed Blade Knife 11in N690 Stainless Tanto Blade Desert Tan Forprene Handle

$383.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Sethlans Expeditio 8.88in Fixed Blade Knife N690 Stainless Blade Tan G10 Handle

$461.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Herring NE Fixed Blade Knives 6.57 in Bohler N690 Stainless Blade Dagger Blade Brass Handle

$604.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Fulcrum Combat 7.13 in Fixed Blade Knife

$495.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio NK1 Neck Knife Desert Warfare Fixed Blade Knife 5in Overall 1 3/4in Blade One Piece N690 SS Construction w/Desert Warfare Finish

$183.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Requiem Fixed Blade Desert Fixed Blade Knife 9.25in Overall 4.5in Stonewash False Edge N690 SS Stiletto Style Blade Desert Tan Forprene

$181.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Requiem HCS Fixed Blade Knife 9.25in Overall 4.5in Stonewash False Edge N690 SS Stiletto Style Blade Hcs Forprene Handle Hcs Nylon Molle

$181.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Requiem Ranger Green Fixed Blade Knife 9.25in Overall 4.5in Stonewash N690 SS Stiletto Style Blade Green Forprene Handle Green Nylon

$181.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Requiem Wolf Grey Fixed Blade Knife 9.25in Overall 4.5in Stonewash False Edge N690 SS Stiletto Style Blade Gray Forprene Handle Gray

$181.00

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Optics Planet Updated Oct 31, 2026

1% OFF

Extrema Ratio NK3 Neck Knife Stonewash Fixed Blade Knife 2.75in Bohler N-690 Steel Standard Edge Tanto Stonewash

$164.00 $165.60

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Mamba Wolf Gray Knife 4.5" stonewash finish Bohler N690 stainless tanto Wolf gray Forprene handle

$181.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Mamba HCS Knife 4.5" stonewash finish Bohler N690 stainless tanto Hybrid Coyote Sage Forprene handle

$181.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Mamba Ranger Green Fixed Blade Knife Mamba 9.25in Overall 4.5in Bohler N690 SS Tanto Blade OD Green Forprene Handle Glass Breaker OD

$181.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Mamba Desert Fixed Blade Knife Mamba 9.25in Overall 4.5in Bohler N690 SS Tanto Blade Desert Tan Forprene Handle Glass Breaker Tan Kydex

$181.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Mamba Fixed Blade Knife Mamba 9.25in Overall 4.5in Bohler N690 SS Tanto Blade Black Forprene Handle Glass Breaker Black Kydex Belt

$197.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio NK3 K Neck Knife Fixed Blade Knife 6.75in Overall 2.75in Tanto Blade Glass Breaker One Piece Black Mil-C-13924 Burnished N690 SS Black

$218.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Scout 2 Stonewashed Fixed Blade Knife Scout 9.25in Overall 4.75in Stonewash N690 SS Spear Point Blade Black Forprene Handle Black Nylon

$215.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Misericordia Fixed Blade Knife 4.64in Bohler N690 Stainless Black MIL-C-13924 Burnished Spear Point Blade Black FRN Handle

$219.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio NK3 K Desert Warfare Fixed Blade Knife 2.75in Bohler N-690 Steel Standard Edge Stanless Handle

$221.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Requiem Fixed Blade Knife 9.25in Overall 4.5in Black Mil-Spec Coated False Edge N690 SS Stiletto Style Blade Black Forprene Handle Black

$197.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Contact C Combat Desert 4.25 in Fixed Blade Knife

$263.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Contact C Combat 4.25 in Fixed Blade Knife

$280.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Scout 2 Fixed Blade Knife Scout 9.25in Overall 4.75in Black N690 SS Spear Point Blade Black Forprene Handle Mil-C-13924 Burnished Blade

$236.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Task C Desert Warfare Knife 3 1/2" desert warfare finish Bohler N690 stainless Desert tan Forprene handle

$238.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Fulcrum C FH Fixed Blade Knife 9.5in 4.25in Bohler N-690 Steel Standard Edge Tanto Handle

$282.00

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Optics Planet Updated Oct 31, 2026

Extrema Ratio Defender 2 Fixed Blade Knife 4.64in Bohler N690 Stainless Black MIL-C-13924 Burnished Blade Black Forprene Handle

$262.00

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