a roscoe - a word for a gun, like the one you use to shoot your enemies

a word for a gun, like the one you use to shoot your enemies and your friend’s phone

I shot my friend’s phone with a roscoe. Now he’s mad and his phone is broken.

I used a roscoe to shoot my enemy. Now he’s in the hospital and I’m a hero.

I shot my dog with a roscoe. Now he doesn’t like me and he’s limping.