United Defense Manufacturing Corporation
 United Defense Manufacturing Corporation (UDMC) is a Philippine defense contractor and firearms manufacturer based in Parañaque Philippines. It provides the Philippine National Police Armed Forces of the Philippines and Philippine Coast Guard amongst others with firearms and other tactical equipment.The company primarily produces M1911-pattern pistols and AR-15-pattern rifles and carbines notably producing a gas-piston variant called the Pneumatic Valve and Rod Assault Rifle (PVAR).