They could provide free firearm training courses and encourage young people to take them. Which would help with accidents.
A separate agency that can focus more on the social issues that are behind gun violence
I doubt they are going to give this agency the necessary tools to lower poverty and the wealth gap, lower the rate of single parents, increase healthcare affordability, increase housing production, and destroy the culture of degrading those who try to better themselves. These are the issues that cause people to be unhappy enough with life they chose to murder. Happy individuals with productive lives don’t generally decide murder is the correct course of action.