In my state of Texas, a hot bed for gun violence and Maas shootings, it is easier for me to obtain an AR-15 simply by walking in to a store than it is to purchase a pistol(restrictions), operate a car(requires a license, insurance, and renewals), commercial truck(requires a commercial license, money), and Grenade(obvious reasons).
The Uvalde shooter could not legally purchase a pistol due to his age but he could purchase an AR-15 without a license, background check, age restrictions, not Jack shvt!