The Mk 153 SMAW has an 83.5 millimetres ( 3.29 in ) diameter tube and fires 83 - millimetre ( 3.3 in ) rockets .
The SMAW is an improved and enhanced development of the Israel Military Industries ' B - 300 weapon .
The development     has an 83.5 millimetres ( 3.29 in ) diameter tube and fires 83 - millimetre ( 3.3 in ) rockets .
The SMAW is an improved and enhanced development of the Israel Military Industries ' B - 300 weapon .