Just received this morning a nice assortment of these:
http://theminiaturespage.com/news/53092/Designed for the Twentieth Century, but they will work just fine for the 1880s onward. The riflemen are armed with Remington rollong-blocks, which the Abyssinians first captured from the Egyptian Army.
Askari Miniatures' Ethiopian militia should mix with them acceptably, and make the beginnings of a nice force for the Ansar and Somalis and British and Italians and French and Belgians and Russians (!) to deal with.
Allen