Officially licensed U.S. Navy engraved keychain bottle opener AUTHENTIC SHELL CASING: This key-chain bullet bottle opener is handcrafted from an authentic .308/7.62 casing. Since the casing was once fired it may show small signs of use consistent with its history, making each one unique SUPPORTING USA BUSINESS: Our openers are sourced, cut, cleaned, and assembled in the USA. Engraving performed in the USA. Key Ring is imported. $1.25 from each bottle opener sold is paid directly to the Navy Morale, Welfare, and Recreation (MWR) program. The mission of MWR is to serve the needs, interests, and responsibilities of all people in the Navy community - Sailors, their Families, civilian employees, and military retirees.