FLOETRY:WHAT AM I?

What am I?....
I'm mostly looked for when your in danger
When your mood is filled with anger
Priced in deferent ranges
Sold for my style
Brought for aiming
Mostly sold for your protection
Faced eye to eye with many strangers
With revenge the only affection
I'm the devil's blessing
Been thrown in water
Even been tossed under cars
I rob, I steal & mostly kill
What am I?....

MR.STANLEY