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Shop Premium Extrema Ratio Knives at Cyclaire – Tactical & Survival Gear UK

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Step into the world of elite craftsmanship with Cyclaire’s curated range of Extrema Ratio knives. Designed and manufactured in Italy, these tactical blades are engineered for professionals who demand precision, reliability, and durability in extreme conditions. From military-grade combat knives to versatile survival tools, our collection reflects the best in cutting-edge design and rugged performance. Cyclaire Knives and Tools are authorised by Extrema Ratio to sell their products in the UK.
Manufacturer: Extrema Ratio Product Code: C218022203
Compact, rugged, and built for the wild, the Extrema Ratio Satre Stonewashed is a fixed-blade neck knife that blends minimalist design with maximum performance. Developed in collaboration with Master Advanced F.I.S.S.S. instructor Daniele Dal Canto, this knife is engineered for survival, bushcraft, ..
£132.93
Extrema Ratio Vipera Nitrogen - 4.56" Nitrogen Stainless Steel Blade HCS Forprene Handle Extrema Ratio Vipera Nitrogen - 4.56" Nitrogen Stainless Steel Blade HCS Forprene Handle
Nitrogen Steel
Manufacturer: Extrema Ratio Product Code: C218048404
The Vipera HCS Stone Washed Nitrogen is a fixed-blade knife built for survivalists, adventurers, and tactical professionals who demand reliability in unpredictable environments. It’s the outdoorsy sibling of the Total Black M390—less covert, more resilient in the field.SpecificationsBlade Steel: Nit..
£136.00
Extrema Ratio Vipera Nitrogen - 4.56" Nitrogen Stainless Steel Blade Ranger Green Forprene Handle Extrema Ratio Vipera Nitrogen - 4.56" Nitrogen Stainless Steel Blade Ranger Green Forprene Handle
Nitrogen Steel
Manufacturer: Extrema Ratio Product Code: C218048403
The Vipera Ranger Green Stone Washed Nitrogen is a fixed-blade knife built for survivalists, adventurers, and tactical professionals who demand reliability in unpredictable environments. It’s the outdoorsy sibling of the Total Black M390—less covert, more resilient in the field. Speci..
£136.00
Manufacturer: Extrema Ratio Product Code: C218047704
The Mamba Black is Extrema Ratio’s ultra-slim fixed blade designed for professionals who need speed, stealth, and strength in one compact package. Inspired by the sleek lethality of its namesake snake, this knife is engineered for tactical efficiency without excess bulk.SpecificationsBlade Steel: Bö..
£146.40
Manufacturer: Extrema Ratio Product Code: C218047703
The Mamba Black is Extrema Ratio’s ultra-slim fixed blade designed for professionals who need speed, stealth, and strength in one compact package. Inspired by the sleek lethality of its namesake snake, this knife is engineered for tactical efficiency without excess bulk.SpecificationsBlade Steel: Bö..
£146.40
Manufacturer: Extrema Ratio Product Code: C218047702
The Mamba Black is Extrema Ratio’s ultra-slim fixed blade designed for professionals who need speed, stealth, and strength in one compact package. Inspired by the sleek lethality of its namesake snake, this knife is engineered for tactical efficiency without excess bulk.SpecificationsBlade Steel: Bö..
£146.40
Manufacturer: Extrema Ratio Product Code: C218047701
The Mamba Black is Extrema Ratio’s ultra-slim fixed blade designed for professionals who need speed, stealth, and strength in one compact package. Inspired by the sleek lethality of its namesake snake, this knife is engineered for tactical efficiency without excess bulk.SpecificationsBlade Steel: Bö..
£160.26
Manufacturer: Extrema Ratio Product Code: C218014601
The BF2 CT is a full-size folding knife crafted for professionals who demand reliability in the field. Whether you're military, law enforcement, or a serious EDC enthusiast, this blade is built to perform under pressure—with rugged elegance and Italian precision.Key SpecificationsBlade Steel: Böhler..
£203.57
Manufacturer: Extrema Ratio Product Code: C218014501
The BF2 CD is a full-size folding knife crafted for professionals who demand reliability in the field. Whether you're military, law enforcement, or a serious EDC enthusiast, this blade is built to perform under pressure—with rugged elegance and Italian precision.Key SpecificationsBlade Steel: Böhler..
£203.57
Manufacturer: Extrema Ratio Product Code: C218014401
The BF1 CD BLACK is Extrema Ratio’s answer to everyday carry with military-grade finesse. Designed for simplicity, strength, and discretion, this folding knife blends tactical reliability with sleek Italian engineering.Key FeaturesBlade Steel: Böhler N690 stainless steel (58 HRC) – burnished for low..
£166.32
Manufacturer: Extrema Ratio Product Code: C218014301
The BF1 CD BLACK 0143 is Extrema Ratio’s answer to everyday carry with military-grade finesse. Designed for simplicity, strength, and discretion, this folding knife blends tactical reliability with sleek Italian engineering.Key FeaturesBlade Steel: Böhler N690 stainless steel (58 HRC) – burnished fo..
£166.32
Manufacturer: Extrema Ratio Product Code: C218013601
Born from a collaboration with Italy’s elite airborne regiment “185° RAO,” the RAO II is a tactical folding knife that defies convention. It’s engineered to perform like a fixed blade, thanks to its robust locking system and safety pin that transforms it into a virtually indestructible field tool.Sp..
£368.16
Manufacturer: Extrema Ratio Product Code: C218012502
Commissioned by Italy’s elite 9th Parachute Assault Regiment “Col Moschin,” this knife is more than a tool—it’s a legacy. Officially adopted in 2002, the Col Moschin Desert Warfare is a modern reinterpretation of the Arditi daggers used by historic Italian special forces.Key FeaturesBlade Material: ..
£373.53
Manufacturer: Extrema Ratio Product Code: C218012501
Commissioned by Italy’s elite 9th Parachute Assault Regiment “Col Moschin,” this knife is more than a tool—it’s a legacy. Officially adopted in 2002, the Col Moschin Black is a modern reinterpretation of the Arditi daggers used by historic Italian special forces.Key FeaturesBlade Material: Bohler N6..
£344.93
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