The textbook "Artillery weapons" consists of three parts and contains material on in-depth study of artillery weapons. The second part is devoted to the Grad multiple launch rocket system. The textbook describes the history of the creation and combat use of rocket artillery, the arrangement of combat vehicles, the operation and interaction of units and mechanisms, the rules for handling weapons and ammunition, the features of the operation and repair of artillery weapons and ammunition, the design and performance characteristics of the BM-21 combat vehicle , transport-loading vehicle 2T254 and regular ammunition. Possible malfunctions of the mechanisms are indicated, ways to eliminate them by the forces of the staff calculation and with the involvement of repair units, the prospects for the development of multiple launch rocket systems are called.The textbook is intended for students of educational institutions of higher education studying in military training centers for military training programs officers and sergeants of the reserve in the military specialties of the missile forces and artillery. It can also be useful to students and cadets of higher military educational organizations.Published in the author's edition.The publisher's layout has been saved in a4.pdf format.