Abstract: A device for physical training, such as in martial arts, boxing and similar disciplines that involve punching, kicking, wing chun kung fu drills, etc. These training and drills are performed without the need for a partner by the use of a training accessory that mounts to a heavy training bag and which provides targets or wing chun type blocking arms which the trainee can punch, kick, or block, for example. The training accessory has a frame that mounts to the heavy bag by use of cinch straps, and includes a pair of depending bars positioned one on each side of the bag. Accessory arms selectively mount to the depending bars and carry or define punching, kicking, or striking targets or wing chun blocking arms. Straps are secured to the heavy bag to prevent its twisting undesirably in response to torque generated by impacts and blocking movements of the trainee.