If fixed-blade karambits are more your style, accept nothing less than one designed by Forged in Fire host Doug Macaida — a man who has seen it all when it comes to knives. The D2 blade’s curved design is small, but precise and can act as a hook for takedowns. With a compact overall length, kydex sheath, and ring that makes a perfect impact weapon, it’s ideal to tuck into your waistband and carry as your primary blade or as a backup weapon. This knife is as well suited for self-defense and martial artists as it is for collectors and knife enthusiasts.