the 6.25mm was dropped for an even smaller 4.85mm cartridge in a completely new rifle, the L64/65 which evolved into the 5.56mm SA80 currently used by the British Army. In spite of having a similar appearance due to its bullpup layout the SA80 is mechanically unrelated to the EM-2; rather it is essentially a bullpup adaptation of the AR-18/SAR-87. However, the concept of an Infantry Personal Weapon which led to the design of the EM-2 was reflected in the SA80 system. See also KAL1 General Purpose Infantry Rifle, similar Australian concept intended for Jungle Warfare conditions. SLEM-1 L64/65 Model 45A Sieg rifle List of assault rifles References Citations Bibliography External links "The New Rifle" – A YouTube video from British Movietone about the rifle, which it refers to as the "280". Enfield EM2 at securityarms.com Enfield EM2 at world.guns.ru EM2 specifications British Pathé newsreel of the EM-2 Canadian Arsenal Limited variant with winter trigger Antill, P. (29 July 2009), The EM-2 (Rifle No. 9, Mk 1): Britain's Original Bullpup Rifle video of 7.62 variant: shooting and disassembly Shooting the EM-2 in .280 British Assault rifles of the United Kingdom Trial and research firearms of the United Kingdom History of science and technology in the United Kingdom Bullpup rifles Rifles of the Cold War