Weight. An MP5A2 [1] weighs 2.5 kilos. 100 rounds of 10mm weighs 2.3 kilos. Add the weight of a drum magazine. Can the model used carry 4.8 (+) kilograms?

Weight. An MP5A2 [1] weighs 2.5 kilos. 100 rounds of 10mm weighs 2.3 kilos. Add the weight of a drum magazine. Can the model used carry 4.8 (+) kilograms? 10 and 1/2 pounds seems like a load. [1] Going with the first SMG model that came to mind. [2] 1 of three calibers an MP5 can fire.