Like the Mirage IIIE, the Mirage 5 was popular with export customers, with different export variants fitted with a wide range of different avionics. While the Mirage 5 had been originally oriented to the clear-weather attack role, with some avionic fits it was refocused to the air-combat mission. As electronic systems became more compact and powerful, it was possible to provide the Mirage 5 with increased capability, even though the rear avionics bay had been deleted, therefore in some sub-versions, the result was a "reinvented" Mirage IIIE.