Yes the barrel is heavy, but it does at least justify it's mass. The back end though, excluding barrel and bolt, still seems strangely heavy even though it feels like tat.Remember the SA80 has a long-assed and fairly thick in section barrel that goes back almost to the butt-plate. That's going to increase both the real and perceived weight of the weapon.
Things ain't going to get much lighter until carbon-fibre barrels become far more ubiquitous from what they are now.
Everywhere you turn there's a carbon-fiber barrel or stock on a rifle. Does the lightweight material really prove superior to steel and wood?gundigest.com
On that note, does anybody know what an SA80 barrel on it's own weighs?