How about we get the federal prosecutors to actually charge and bring to court all the illegal weapons charges to begin with?
How many convicted felons that use a firearm to commit another crime actually get charged for the federal offense? IMHO, not many.
The Federal prohibition is pretty much a joke. I remember when the Brady Bill first passed, Sarah Brady bragged about how many illegal sales were blocked, but didn't mention that only 4 or 5 were prosecuted. Hell, look at Fast and Furious, the Feds are committing
I think the majority of weapons charges are made on the state level.