You're asking a very broad question. Rifles are manufactured in a variety of sizes, and weight can vary greatly between different models.
That depends on the exact model of rifle.
Depends on exactly which rifle(s) you refer to.
9+ pounds.
14 lbs
About 7.5 lbs.
@ 5 lbs
roughly one pound, when loaded
It depends on which rifle. <><><> Agree with above. There is no one "assault rifle", and no one weight. The German StG44 weighed 10.2 lbs, the M16 weighs 7.1 lbs.
24 kg usually
The northern pike can weigh up to forty pounds, usually around ten pounds.
Usually they want to weigh close to 17,00 lbs.
They usually weigh between five and ten pounds.