sentences:  The Palestine Liberation Organization (PLO) guerrilla factions based in Lebanon assembled at their workshops in the Palestinian refugee camps of West Beirut some eight armoured cars which differed little from the original UR-416 design.Minor details could be found in the positioning of the headlights, which were bolted to the side of the engine compartment and protected by a box-shaped brush guard, instead of being mounted on top as per in the West German model.They were first displayed publicly at a PLO parade held at Beirut in April 1981, some of them fitted with roof-top AT-3 Sagger or ENTAC anti-tank missile systems though period photos show that they were more often armed with a single Browning M1919A4 .30 caliber (7.62mm) or M2HB .50 Browning (12.7×99mm) heavy machine guns mounted in the roof.