The M72 replaced the anti-tank rifle grenade and M20 3.5-inch rocket launcher in U.S. service. According to 3rd Brigade Combat Team, 10th Mountain Division Lessons Learned from March 2010 ...

The unrecovered M72 portable anti-tank weapons ... sought the return of the weapons for decades. The 66-millimetre rocket launchers have an effective range of up to 200 metres against stationary ...