Can You ID This Bolt?

[Michaelm45]

I found this in the back of my cabinet. I don't know how or where I got it.
45acp fits into face.
No markings.
weights around 2 or 3 pounds.
Firing pin looks to be stationery.

 

[SDC]

Thompson M1 or M1A1.

 

[Scorch]

That is a open-bolt full auto bolt, at that.

 

[Jim Watson]

M1A1
M1 Thompson has a separate firing pin.

 

[SDC]

Right you are, Jim; for some reason, I'd thought that they had dropped the separate firing-pin entirely when they adopted the M1, but they only went half-way for some reason.

 

[Michaelm45]

Thanks

Thanks for the replys.

Anyone need this bolt?

 

[Seiko]

Sent ya a PM,
I have a friend with 2, but cant remember if he has 21's or 28's.

 

[Michaelm45]

Replyed
Thanks
Michael