The Yidden at the time of the churban had much better weapons at their disposal (such as the ability to levitate the city), if you read the Medrashim. They just didn’t help, since Hashem wanted them to lose.
If they had AK-47’s, the bullets would have just plopped out, with the next one complaining how hard it was to push out the first bullet.
For Heaven’s sake, it was only a joke. Ease up.
The Wolf