Kind of like how hard it is to buy meth? In a tiny place like Uvalde, TX it might be gard to find the black market. But in bigger cities like Houston or Los Angeles it's about as hard as finding a gas station.

Regardless, maybe that makes it harder for you and me to obtain them, but not criminals and 93% of all gun crimes are with illegal weapons.

The school thing is easy to solve, raise the buying age to 21 or even 25. It really shouldn't be 18.