Interlocking bumper mounting system

An exemplary interlocking bumper for mounting to frame rails of a vehicle is illustrated with a respective first bumper mounting receptacle coupled to each frame rail, such as by a frame rail mounting bracket. The interlocking bumper can further include a center bumper reinforcement that includes projections that are insertable into the first bumper mounting receptacles. Each projection of the center bumper reinforcement can define a second bumper mounting receptacle. Furthermore, the interlocking bumper can include first and second end cap bumper reinforcements each including a projection that is insertable into one of the second bumper mounting receptacles.