Check this out.

[MMissile]

Talk about rare and obscure....

Colt Model 1923 Thompson rifle

Colt Model 1923 Thompson rifle A few years after the Great War the United States began accepting submissions for semi-automatic rifle designs to replace the standard issue M1903 bolt-action. Numerous designers threw their hat into the ring result in a bevy of interesting rifles from top...

forum.enlisted.net

 

[AGG]

Interesting.

Tony

 

[Valmet]

I’d heard of these but had never seen one