In every communist revolution and the Nazi takeover, after an election is rigged to bring in the new power at the head of government, police and military are ordered to protect critical infrastructure.
As that is happening, roving bands of terrorist cells, primarily composed of agitated youths, start their campaign in the countryside on soft targets to build confidence and operational finesse, usually on the elderly or single parent families where raping, torture, and murder are the easiest.
They are often rewarded with narcotics, told what a great job they are doing for the revolution, making these capitalist scum pay for their crimes, and emboldened for the next objective.
They collapse on the cities after recruiting enough muscle and acquiring more weapons until they have more company and battalion-size elements to be able to overcome the police and military, who are still under orders to basically do static security.
Meanwhile, generals in the military who show any hint of not being revolution supporters are summarily executed in front of the others and replaced with yes-men. Same with police.
It has literally been done like this every time.
If you don’t have the right plan, your AR-15s and ammo will feed the revolutionaries after they have taken them off of your mutilated corpse, after forcing you to watch them rape your wife, daughters, and sons. They might recruit your children into the movement if they see potential for them, once you and your wife have been slaughtered like sheep. This kind of thing happens in Africa all the time.