D-1. The firing line should be organized to allow for the 100-meter M136 AT4 backblast (Figure D-1). Also, at least 20 meters must be allowed between firing points. The backblast area must be fenced, roped, or marked in some way, so Soldiers know not to enter it when firing is being conducted. A range that meets the requirements of the M136 AT4 will also meet the requirements of the M72-series LAW and the M141 BDM.
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