Original Pre-WWII U.S. Navy Gun 3 Inch / 50 Caliber Dual Purpose Naval Gun Drill Round Dated 1921 M3 Grease Gun Manufactured in Pre-War Czechoslovakia this

Manufactured in Pre-War Czechoslovakia this was one of the finest Light Machine Guns ever produced

- BC 1000-B radio transmitter and receiver

after which it adopted the M1879 Peabody-Martini Rifle

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The 531st Bomb Squadron

Original Pre-WWII U.S. Navy Gun 3 Inch / 50 Caliber Dual Purpose Naval Gun Drill Round Dated 1921 M3 Grease Gun Manufactured in Pre-War Czechoslovakia thisOriginal Item: Only One Available. This is a fantastic practice round that the USN used to drill with that fired a small rifle cartridge in the steel barrel that was in the brass casting. The rifle cartridge was much cheaper than firing a full size round. If you look at it closely it has a steel barrel inserted through the length of the shell. It most likely fired a 30 40 Krag cartridge. This drill round was designed for the U. S. Navy 3 in. 50