The drone payload was 11 handguns! That's some impressive weight. Does anyone have any idea about A) how much that might weigh and B) what sort of flight endura

The drone payload was 11 handguns! That's some impressive weight. Does anyone have any idea about A) how much that might weigh and B) what sort of flight endurance this trip would need? A quick Wikipedia would suggest not all that long (time/distance wise) [1] I presume that it would need to be some kind of a homemade rather than a Commercial off-the-shelf one? [1] https://en.wikipedia.org/wiki/St._Clair_River https://en.wikipedia.org/wiki/St._Clair_River