calibre bullpup assault rifle. It uses an AR18 type operation with an SVT40 type gas piston. The SUSAT sight is robust and reliable. See also EM-2 rifle Sterling SAR-87 SA80 Leader Dynamics Series T2 MK5 SR 88 List of bullpup firearms List of assault rifles References Bibliography Ian V. Hogg and John Weeks – Military Small Arms of the 20th Century – Arms & Armour Press/Hippocrene – 1977 – Falklands Aftermath: Forces '85, Marshall Cavendish (1984), External links Info of the .19 calibre XL60 4.85mm series Assault rifles of the United Kingdom Bullpup rifles Light machine guns Trial and research firearms of the United Kingdom