They heard a gun go off in the distance. ✬

The man suddenly started shooting his gun. ✬

Put the gun on the table. ✬

The gun went off by accident. ✬

Don't play with that gun. It's not a toy. ✬

You've got to carry a gun in this area. ✬

Who does the gun belong to? ✬

This gun is out of bullets. ✬

The police compared the fingerprints on the gun with those on the door. ✬

Don't point your gun at me. ✬