A folding knife includes a blade, first and second handle portions, a post, and an engaging plate. The post extends from the first handle portion. The blade is pivotable relative to the handle portions about a pivot axis between open and closed positions. The engaging plate is coupled to the second handle portion and is movable relative to the second handle portion between first and second positions. In the first position, the engaging plate engages the post, thereby restricting relative movement between the first and second handle portions in a direction parallel to the pivot axis and retaining the blade between the first and second handle portions. In the second position, the engaging plate disengages the post, thereby allowing relative movement between the first and second handle portions in the direction parallel to the pivot axis and allowing the blade to be separated from the first and second handle portions.