A locking mechanism for a folding knife is provided. More specifically, the locking mechanism is a two-piece backlock that maintains the folding knife's extended position and prevents the blade from inadvertently closing when the knife is in use in the extended position and impedes the folding knife from inadvertently opening when the knife is in a closed position of storage. The locking mechanism generally comprises a backlock, a toggle, and a biasing member. The toggle rotates between two positions and engages with the tang of the blade and the backlock.