The 6G30 RE operating manual is intended for the study and correct operation of a 40-mm hand-held anti-personnel grenade launcher and contains information on the design and principle of operation of the grenade launcher, as well as information necessary for its correct operation (use, transportation, storage and maintenance) and maintaining it in constant readiness to fire. The operation and combat use of a grenade launcher is allowed to persons who have studied the material part, have mastered the techniques, shooting rules and safety measures. The source or carrier of a dangerous effect when firing from a grenade launcher can be a grenade flying out of the barrel bore when fired, rotating barrel block. Drawings explaining the text are given in Appendix A.