It's just very long, since a Dwarf has a short reach. 
[img]https://upload.wikimedia.org/wikipedia/commons/thumb/7/78/Sword_parts-en.svg/2000px-Sword_parts-en.svg.png[/img]
It only has half of the guard, since due to having a really big shield part of the guard (the part facing the shield) can get get stuck on the shield if he tries an attack. Thus, only half of the crossguard is there, to stop it messing with his strikes. 
[img]http://i.imgur.com/qFfS8ir.jpg[/img]
to visualize, the part I scribbled on with black is not there, for this particular sword.