I usually do not name my weapons... unless they name themselves.
I had a knife named Traitor
I have a sword named Quietly
I have a bow named MadBastard
My AK is brewing a name, but it isn't done yet.
none of my other weapons are named.
My LE acquired the monkier after a day of shooting when I realised that my shoulder felt as though someone wailed on it with a baseball bat. My 8mm Mauser (G. 98) has yet to have a name.