GBM waa nooc ka mid ah mishiinada biraha birta ah ee nooca xiiraya iyadoo la isticmaalayo daab gooyo kaas oo si weyn loogu isticmaalo warshadaha qaab dhismeedka birta.
Waa nooca socodka oo ay weheliso cidhifka saxanka oo leh xawaare sare oo ku dhow 1.5-2.8 mitir daqiiqadii.Moodooyinka GBM-6D, GBM-6D-T, GBM-12D, GBM-12D-R, GBM-16D iyo GBM-16D-R ee ikhtiyaarka leh kala duwanaanshaha shaqo ee kala duwan ee noocyo badan oo xaashi bir ah.
