Frag Kit 6 is a vehicular armor upgrade kit developed by the U.S. Army Research Laboratory to defeat

explosively formed projectiles An explosively formed penetrator (EFP), also known as an explosively formed projectile (EFP), a self-forging warhead, or a self-forging fragment, is the product of a shaped charge designed to penetrate armor effectively. As the name suggests, the ...

(EFP), a type of armor penetrator often utilized in

improvised explosive device An improvised explosive device (IED) is a bomb constructed and deployed in ways other than in conventional military action. It may be constructed of conventional military explosives, such as an artillery shell, attached to a detonating mecha ...

s (IED). It is designed to be added on armored vehicles such as the

MRAP Mine-Resistant Ambush Protected (MRAP; ) is a term for United States Armed Forces, United States military light tactical vehicles produced as part of the MRAP program that are designed specifically to withstand improvised explosive device (IE ...

and unarmored

Humvee The High Mobility Multipurpose Wheeled Vehicle (HMMWV; colloquial: Humvee) is a family of light, four-wheel drive, military trucks and utility vehicles produced by AM General. It has largely supplanted the roles previously performed by the ...

. Like the

Chobham armor Chobham armour is the informal name of a composite armour developed in the 1960s at the British tank research centre on Chobham Common, Surrey. The name has since become the common generic term for composite ceramic vehicle armour. Other name ...

, the exact materials and the way it works is

classified information Classified information is material that a government body deems to be sensitive information that must be protected. Access is restricted by law or regulation to particular groups of people with the necessary security clearance and need to kn ...

. Frag Kit 6 adds about of extra weight (100 lb per sq ft) and of width on each side of the vehicle (2 feet overall) over the previous Frag Kit 5 Humvee armor. The doors are so heavy, troops may need a mechanical assist device to open and close them and so wide drivers may require built-in visual references so they will know if they can fit the vehicle in narrow spaces. Frag Kit 6 armor also makes MRAP vehicles too wide to legally operate on U.S. highways. Frag Kit 6 technology is integrated into MRAP II vehicles. The purpose behind the MRAP II competition was to field vehicles that don't need the kit added on. Frag Kit 6 looks similar to the armored plates used on the

British British may refer to: Peoples, culture, and language * British people, nationals or natives of the United Kingdom, British Overseas Territories, and Crown Dependencies. ** Britishness, the British identity and common culture * British English, ...

"Mastiff" version of the Force Protection Cougar. It appears to be used extensively on Navistar's MaxxPro Plus vehicle.

References

External links

USA Today: Plan calls for more armor on new combat vehicles 10/03/2007
Vehicle armour Armoured fighting vehicle equipment {{Armour-stub