The BM-14 (BM for Boyevaya Mashina, 'combat vehicle'), is a Soviet-made 140mm multiple rocket launcher, fielded by the Soviet Union. The BM-14 can fire rockets fitted with chemical (MS-14), smoke (M-14D) or high-explosive fragmentation (M-14-OF) warheads. It is similar to the BM-13 "Katyusha" and was partly replaced in service by the 122 mm BM-21 Grad. The rocket has a range of about 9.8 km and can carry a warhead of 8 kg weight. Launchers were built in 16 and 17-round variants. The weapon is not accurate as there is no guidance system, but it is extremely effective in saturation bombardment.