Gripknife GK001 Patriot Model Black Foregrip/Knife Combo

This innovative GripKnife Patriot is hands down the best back-up defensive blade in the industry today. It is a knife when you need it, and a vertical foregrip when you don't.

About the GripKnife

The company did away with the standard of having grips layered on top of thin industry-standard type liners, of which are all then held together by many small screws, spacers, pins, etc. (fail points). GripKnife built a 2-piece frame—a Chassis. The Model 7 Chassis is two pieces interlocked together—even without the use of screws, and it’s already incapable of moving in nearly every direction—this eliminates the majority of the weaknesses found in most collapsible knives made today. Nothing like this has ever been done, but the company wanted to achieve a level of strength never before imagined. GripKnife wanted their advantage to come from design, not the amount of hardware added to the design—in fact, they wanted as few parts and equipment as possible, and this is why the chassis is only two parts and two screws. The Model 7 Chassis is the latest design that delivers a new standard of collapsible knife strength, engineering, and precision.

More about the Blade 

Known globally for its extreme strength, toughness, wear resistance, and superior properties, GripKnife has precision-machined their blade from M2 High-Speed Steel. Designed primarily for cutting tool applications, M2 is used to make tools, bits, and blades that cut other steels and metals in various machining applications. Then, in a special furnace that’s absent of air and other gasses and capable of reaching over half the surface temperature of the sun, the blade is pushed to extremely high temperatures that change and vastly improve the mechanical properties of the steel itself. This makes it not only remarkably consistent but takes strength, hardness, toughness, and durability to an entirely different level—our level. Next, the blade is cooled down to around -300°F (close to the surface temperature of Pluto) through the use of liquid nitrogen. This changes the crystal structure of the blade on a molecular level and removes any stresses caused by heat-treatment and machining, resulting in even greater strength, hardness, and maximum wear resistance. After a few more intense processes like this, the blade is ready for the chassis.