How do i make the Fist Swep break props?

Currently the way the fist swep breaks stuff is by damaging it enough to where it usually breaks then deletes it, and this does not work with windows. so im wondering how i make the fist break windows/props properly.
Here is the weapon_fist lua. https://www.dropbox.com/s/vhbze0gqgj950n4/weapon_fists.lua?dl=0

[editline]3rd September 2014[/editline]

Also, the animation only shows for other players and not for yourself when right clicking

This should do it but then I haven’t tested it.