In 1791 the 2nd amendment was created in order to protect the right of the people to keep and bear arms. But Weapon technology has come along way sense then. Thus is the time to classify weapons into categories. As weapons are tools that are designed for a reason and purpose.
1-Handguns 9mm 45 cal 22 cal
2-Rifles 7mm 30 30 30-36 22cal
3-Automatic assault rifles Ak-47 m16 M4 Carbine
fully automatic
Category 1-used for personal protection.
Category 2-used for hunting target practice home
protection.
Category 3-used for law enforcement and military
operations
After classifying into categories there should be no change to 1 or 2 but #3 should only be available to law enforcement, Military and government agencies