The Commando Mark 45 is a vintage American semi-automatic carbine from Volunteer Enterprises, styled to resemble the iconic Thompson "Tommy Gun." Chambered in .45 ACP, it uses a simple blowback action and combines its distinctive military-inspired profile with substantial wood furniture, making it an interesting collectible from the era of commercial Thompson-style carbines. Volunteer Enterprises was located in Knoxville, Tennessee and later became Commando Arms after 1978.