 The primary ammunition for the weapon is the high-explosive 53-F-864 mortar projectile which contains 32 kg of explosive charge and has a total weight of 130.7 kg.The GMWZ-7 fuze could be set to have either a delayed action or detonate on contact.The weapon uses a 5-part propelling charge system, which vary the muzzle velocity from 158 to 362 m/s and ensure a range from 800 to 9,650 m. 1970 saw the introduction of a new type of rocket-assisted family of munitions for the M-240, designated ARM-0-3WF2 (or simply 3WF2) which used a new 4BN56 propellant charge to carry a 228 kg high explosive projectile (designated 3F2 'Gagara') to a maximum range of 18 km.