"TRAINER IS BALLASTED TO SIMULATE THE TACTICAL ASSAULT ROCKETS;A REPLACEABLE NOISE CARTRIDGE SIMULATES THE FIRING OF THE TACTICAL ROCKET,CREATES PRESSURE,RECOIL,AND SOUND SIMILAR TO THOSE OF THE ASSAULT ROCKETS;A FIBERGLASS COVERED METAL WITH PROVISIONS FOR STORAGE OF THE RIFLE MAGAZINE;IT IS INTENDED FOR BASIC TRAINING FOR THE SMAW WEAPON SYSTEM"