Original Vietnam War U.S. Navy Colt Mk12 Mod.0 20mm Prop Aircraft Display Autocannon Machine Gun with Feed Chutes Lanchester SMG 5-inch howitzers was acquired and

5-inch howitzers was acquired and preserved by the Imperial War Museum

Possibly used at the Battle of Copenhagen in 1801

"Lend-Lease" program

Designed in 1858

The receiver bears a serial number

Original Vietnam War U.S. Navy Colt Mk12 Mod.0 20mm Prop Aircraft Display Autocannon Machine Gun with Feed Chutes Lanchester SMG 5-inch howitzers was acquired andOriginal and Replica Items: Only One Available. This is VERY impressive "Mock Up" type Colt Mk 12 Mod. 0 20mm Prop Aircraft Display Autocannon Machine Gun, made using original components attached to a custom fabricated totally inert steel receiver. This was made with several pieces of thick steel welded together to make an empty "box", and has no functional ability whatsoever, making this a 100% legal mockup display gun. The only original part on the