Writing off a firearm?

[Alex Martin]

This may be a wacky question, especially considering I couldn't find any search results pertaining to this, but can you write off the cost of a pistol as a business expense? I own almost a dozen rentals in the Tri cities area of Michigan, which is known to get a little dicey in certain parts. While I myself have not been in a situation which would warrant using a firearm and pray I do not, I have heard stories of landlords being assaulted while working or picking up rent. I've pretty much made up my mind that I am going to get a pistol and take some training courses; being the savvy guy that I am however I was thinking about how I could save some money. Any input?