The L9A1 51 mm Light Mortar is a man-portable mortar system used by the British Army. Smoke, illuminating and high explosive bombs are available. A short range insert device allows the weapon to be used in a direct fire mode. The 51 mm mortar, which replaced the World War II-vintage 2 inch mortar, is slowly being phased out by the use of the 40 mm L17A2 UGL (Under-slung Grenade Launcher) mounted on the L85A2. Mortar has several meanings: A mortar is a military weapon into which is dropped a mortar shell, which is then fired in a high ballistic trajectory. ... The British Army is the land armed forces branch of the British Armed Forces. ... This article is concerned solely with chemical explosives. ... This article is becoming very long. ... The Ordnance SBML 2-inch Mortar, or more commonly just 2-inch Mortar, was a British mortar issued to the British Army and the Commonwealth armies that saw use during the Second World War and later. ... The 40mm grenade is the calibre used by the US military for their M79, Colt XM148 and M203 grenade launchers. ... Under-Slung Grenade Launcher (UGL) is the under-barrel 40 mm grenade launcher used by the British Army in conjunction with the SA80 A2 Rifle, and in small numbers with the Diemaco C7 Rifle used by the SAS. It is designed and built by Heckler and Koch (HK) and is... British soldier with L85 in the 1991 Gulf War British soldier with L85 SA80 (Small Arms for 1980s) is a family of related arms that include the British Armys standard combat rifle. ...