via Oh Gizmo
The above dagger is called the Jagdkommando Integral Tri-Dagger Fixed Blade Knife. It’s salient feature is that its impressive looking try-edged blade twists, so that you don’t have to. See, it’s one thing to stab something, but if you really want to go for the kill, you twist that blade around when it’s in there. This dagger saves you a step. It also doubles as a glass breaker, with the sheath becoming the breaker’s handle. It’s an impressive looking piece of kit.