50 Caliber Covert Bottle Opener - New In Original Packaging, actual item pictured, two available.  This a promo item from a company called Lockwood that ha a company logo on it.  

This is a real spent casing, there is nothing harmful or dangerous about it, just a fun little conversation piece that serves as a bottle opener.  Ships via USPS Ground Advantage with tracking.  If you buy both, only $0.50 shipping on second item.

Thanks for looking and have a great day!