What is provided is a method for casting reinforcement alignment feature into concrete wall blocks and precast concrete wall blocks configured for assembly into a wall. Reinforcement alignment features, such as horizontal reinforcement grooves and/or vertical reinforcement grooves, are precast simultaneously with panels, ribs, and other components of the concrete wall blocks in the forms in which the concrete wall blocks are cast. As a result, reinforcing members, such as rebar and welded wire mesh, may be positioned, either horizontally or vertically, in desired and appropriate locations on the concrete wall blocks. Consequently, there is a significant increase in the convenience and ease of wall construction, while greatly reducing the amount of labor that is needed. In addition, the constructed walls have increased stability, strength, and water resistance.