Mag lite
Used to have the big ones in the car all the time...good stand off weapon.
Reason not to use them as a club?
Had a trainee with me one time, we were approaching the home to interview the occupant...front porch was about 100 feet from the front fence/gate. We were about half way on the front lawn, when three german sheperds burst through the screen door, running full out at us.
I looked at the front gate, figured I couldn't outrun the four legged critters, when I heard the tenant yell, "Stay perfectly still! Don't run!"
I had my flashlight out, but I figured I'd gamble and held still. The dogs ran past me but bumped me hard.
The trainee had his five cell maglite out, and he took a swing, hitting the lead dog in the head. Then the head of the light and all the batteries poured out of the shell.
Now the trainee was left holding on to his....shell with all the contents on the ground.
Luckily, the other two dogs looked at the first one, who was walking around in a circle, totally dazed...I think if it was a human, it had a bit of a concussion. Without any noise, the other two turned and ran back into the house. The first one kind of laid there and put its paws on its head as it whimpered.
The tenant didn't file a complaint, but boy was she pi$$%d.
So unless you know that that mag head is on tight...I wouldn't use it as a club. Within that year, we had several other instances where the light lost its head and its contents after the first strike.
If you don't have large hands, you might look at the streamlight version of a long flashlight.
Good luck.