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KeyMod is a universal interface system for firearm accessory components designed to be superior to the MIL-STD-1913 accessory rails.LTOR Weapon Systems had previously pursued a design which was the basis for the KeyMod system. While developing the first prototype systems Eric Kincel of VLTOR Weapon systems was approached by John Noveske of Noveske Rifleworks with a design for a universal accessory attachment system.
A key is a device that is used to operate a lock (such as to lock or unlock it). A typical key is a small piece of metal consisting of two parts: the blade, which slides into the keyway of the lock and distinguishes between different keys, and the bow, which is left protruding so that torque can be applied by the user.