Artillery grenade holster

Artillery grenade holsters are configured to releasably retain one or more artillery grenades. One or more retaining tabs are configured to define a receptacle space for receiving an artillery grenade. The retaining tab(s) flex outwardly during grenade extraction to allow release of the artillery grenade, after which the retaining tab(s) flex back to their original positions. A secondary retaining element links two or more retaining tabs to prevent inadvertent outward flexing. An artillery grenade holster includes a securing cap fixedly attached, by a retention cable, to a back support and releasably attached, by the retention cable, to a securing element of a front support.