What main assault rifle do the british army use?

The current issue rifle of the British armed forces is the L85-A2 or SA80 (Small Arms 1980s) as it is commonly known.

It is a 5.56mm calibre assault rifle. It is a bullpup, meaning that the pistol grip and trigger are in front of the magazine housing. It's magazines hold 30 rounds, and the weapon has two modes of fire; semi automatic and automatic.