INERT DEACTIVATED. The 51mm high explosive mortar bomb was used by the British Army from 1980 until about 2007 having replaced the old 2 inch mortar in army service. This L5A2 smoke mortar retains most of its original light green painted finish and is stencilled in black on the body 51MM M SMK L5A2 round its circumference. The mortors propelling cartridge is headstamped L6A1 ILLUM GD 11/97 (November 1997 date) 008 . The 51mm mortar was replaced in service by the 60mm mortar. The price includes UK delivery and no licence is required to possess this inert mortar in the UK if retained as part of a collection or display. O 2028