Haven't we had this discussion before?
If they are too dangerous to carry arms, then they should not be walking amongst us - so say some.
I hear you. I think the question boils down to whether or not rehabilitation is credible, whether or not to take away the rights of a convicted felon forever, even their max sentence may only be say, 5 years.
Given the time-based studies I've done on violent crime here in America as compared to elsewhere, most notably the United Kingdom, I'm inclined to agree with the following:
First Felony Offense: Unless circumstances such as aggravated assault, etc., dictate otherwise, first-time offenders need to complete the minimum sentence required for their crime, plus an additional two years of supervised probation.
Following successful completion, their full rights are restored, including all rights involving firearms.
Second Felony Offense: No firearms rights are to be restored. Ever.
Third Felony Offense: Three strikes and you're out. If any component of your third strike involves an aggravated crime or any form of murder, it's lights out. And no, you don't get 10 years of freeloading on the taxpayer dime. You get 1 year, period. That may be increased to up to 3 years, total, upon decision by a judge, after presentation of credible evidence that such an extension is warranted as being in the best interest of the people or that new evidence, not previously available, is obtainable in the foreseeable future.