ShotSpotter operates in more than 170 American cities, but many have dropped the service that detects gunfire and alerts police.

The Supreme Court upheld a Biden administration regulation on "ghost guns" Tuesday, a move that could impact some gun owners.

For the sake of brevity, we’ll mostly focus only on common and modern types of shotguns. A firearm’s action is the mechanism by which the gun loads shells into its breech. First, you need to know that ...