http://gofree.indigo.ie/~acoy20bn/steyr.html - admittedly this is one company in the Irish TA and the sight URL looks a bit homemade, however it does relay the fact that the Steyr AUG, assault rifle - not a carbine;
Is effective as an individual weapon at 500 METRES and as a section fire weapon at 600 metres.
furthermore. this is an SA80 asault rifle - not a carbine,
there are in fact 3 variants an Sa-80 an sa80 carbine and an sa80 carbine for tankies
they are not the same thing
http://www.army.mod.uk/equipment/pw/pw_sa80.htm
this is an SA80 carbine - there is a difference
http://forum.keypublishing.co.uk/attachment.php?s=dba0a33dae2203fe992f03b7078d4999&attachmentid=70504&stc=1&thumb=1
in design above and on trials below
http://forum.keypublishing.co.uk/attachment.php?s=dba0a33dae2203fe992f03b7078d4999&attachmentid=70505&stc=1&thumb=1