 Barrack buster

Barrack buster is the colloquial name given to several improvised mortars, developed in the 1990s by the engineering group of the Provisional Irish Republican Army (IRA).The first barrack buster—known to the British security forces as the Mark 15 mortar—fired a long metal propane cylinder with a diameter of , which contained around of home-made explosives and had a range of .