If you are not in jail or in a mental institution you should be able to have a weapon to protect yourself or your family.
The problem is that people who need to be executed are out on parole, and people who need to be committed are walking freely, and people who have molested children and raped women are out of prison after only a few months.
Bail is another thing also. If the accused crime is non-violent bail should be allowed. If it is a violent or sexual offense bail should be denied.
NICS is a joke for us, but a serious attempt at registry by the government. A digital record is impossible to dispose of Once it has been placed on multiple servers (a given). They aren't really concerned with stopping purchases. That isn't and never has been the true purpose of NICS.
It is a testbed program for digital gun registration.