[ceilingcorner]

IEDs are the more commonly used weapons, and they aren’t hard to make. I also have zero doubts that if the military actually started fighting the civilian populace, more powerful weapons would get introduced (possibly by other states, as with in Afghanistan.)

[cko]

Yup. And the heavier the equipment used against civilians, the greater the anti government resistance. The military will run out of Apaches and Abrams long before the people run out of ideology/anger.

[natmaka]

... and, just like in Afghanistan (especially during the Soviet invasion in the 80's), rebels will ambush convoys/advanced bases and steal weaponry and associated material.

[nickthemagicman]

Military defection as well.

The military has a lot of conservative pro-gun people.