5.11 Tactical

Double Duty Responder Knife

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The Double Duty Responder Knife is a quick and adaptable service tool used by EMS professionals around the country. The 3.7" primary blade offers a combo edge blunt-tip sheepsfoot design that cuts quickly, easily, and safely. A secondary seatbelt cutter blade offers an integrated carbide glass breaker for quick vehicle extractions. A rubber-overmolded FRN handle ensures a secure grip in wet or dry environments, and an ambidextrous pocket clip allows multiple carry options. Includes a Torx® wrench for modifications.

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Product Details


  • Twin blade first responder knife
  • Combo edge main blade
  • Secondary seatbelt cutter blade
  • Integrated carbide glass breaker
  • Rubber-overmolded FRN grips
  • Ambidextrous carry clip



  • Main and secondary blades are 3mm/1.8mm AUS 8 steel
  • 9.7" overall length with both blades deployed
  • Independent liner locks on both blades
  • Includes a Torx wrench for modifications