I would consider that a reasonably light rifle but not ultralight; I'd say ~ 6 lb with an empty mag and sights is a medium light rifle. That's a fairly easy weight to achieve with common components, as yours is. IMO that makes for a nice handy rifle that should still be able to shoot well if the barrel is decent.
Under 5 lb is achievable without too much work, even with a red dot mounted. If you go full out, under 4 lb is possible, I've seen a couple right around 3.5 lb (not scoped) but that requires a lot of custom work and lightening every component possible.
Then again, some guys are used to 15+ lb rifles and anything under 10 lb is considered light weight to them. It's all about perspective.
