I bet you've never seen/handled a FULL AUTO TOMMY GUN! This is a classic Colt 1921 Thompson Transferable Machine Gun. According to the ATF paper work Colt Manufacturing is the maker for this Machine Gun .This gun is in good condition and comes as shown and has the low serial number of 4172. This particular Thompson was originally purchased by the Trenton, New Jersey Police Department (“The Thompson Sub Machine Gun Guide” by Roger A. Cox). This .45 caliber Machine Gun is in its Original Condition and has a Matching Upper & Lower. It comes with one 50-Round Drum Magazine. This Machine Gun is an Excellent investment and comes with a 3 Day inspection period after being received by your FFL/SOT.