Click on the image above to learn more about the M1 Carbine
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TRIVIA QUESTION |
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Louis Losi 
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Joined: Jan 04 2016 Location: New York State Status: Offline Points: 331 |
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 Posted: Yesterday at 1:09pm |
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I just realized that the picture I posted the A1 was not hand stamped but part of the original nomenclature although I do have, somewhere, a picture with the A1 hand stamped. The trivia question still needs to be answere.
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W5USMC
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Joined: Apr 29 2017 Location: Missouri Status: Offline Points: 2737 |
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Posted: Yesterday at 1:12pm |
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The Army XXX'd out the A1 when they sold the guns to the Police departments. The M1A1 has the fixed firing pin and could slam fire if not released properly. The M1 has the free floating firing pin and was "safer" for Police and civilians.
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Wayne
USMC Retired NRA Life Member |
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Louis Losi
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Joined: Jan 04 2016 Location: New York State Status: Offline Points: 331 |
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Posted: Yesterday at 3:12pm |
Incorrect answer.
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W5USMC
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Posted: Yesterday at 3:57pm |
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Just going with what I read on machinegunboards.
Edited by W5USMC - Yesterday at 5:00pm |
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Wayne
USMC Retired NRA Life Member |
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Louis Losi
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Joined: Jan 04 2016 Location: New York State Status: Offline Points: 331 |
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Posted: Yesterday at 4:55pm |
The answer you previously gave is incorrect. You may have missed it but the answer was in the link you posted.
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W5USMC
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Posted: Yesterday at 5:02pm |
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How about this Louis,
"The arsenal only had M1 bolts available when it was inspected and or overhauled" |
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Wayne
USMC Retired NRA Life Member |
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Louis Losi
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Joined: Jan 04 2016 Location: New York State Status: Offline Points: 331 |
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Posted: Yesterday at 5:47pm |
That is the correct answer, but it works both ways. There are two types of bolts. The original M1 Thompson bolt that contained a firing and a hammer. The M1A1 Thompson's bolt eliminated the firing pin and hammer, the firing pin tip being machine onto the bolt face. Easier to manufacture but interchangeable with either the M1 or M1A1 Thompsons. In my original trivia, a letter A and the number 1 was hand stamped after CALIBER .45 M1. There came a time for this M1 Thompson to be overhauled or rebuilt. The armorers replaced the M1 bolt with the M1A1 bolt, thus the addition of the hand stamped A1. Later this now M1A1 Thompson was again returned to be overhauled or rebuilt. This time there were no M1A1 bolts but M1 bolts were in inventory, so the M1 bolt was used converting this M1A1 Thompson back to it's original configuration. The A1 designation need to be Xed out to make this Thompson, again, an M1 Thompson. In the M1A1 picture I posted, this Thompson was manufactured and assembled with the M1A1 bolt, thus the M1A1 designation. This M1A1 Thompson, eventually, needed to overhauled or rebuilt. Again, the lack of M1A1 bolts resulted in using an M1 bolt. This required Xing out the A1, thus making it an M1 Thompson. I've seen a picture of a .30 cal. BMG where the 17 in M1917 was Xed out and 19A4 added when the water cooled M1917 was converted to the air cooled M1919A4. I've seen a pictured .30 cal. M1919A4 where the 4 was Xed out and a 6 was added converting the M1919A4 to M1919A6. Later if the M1919A6 was converted back to the original M1919A4 configuration, the 6 would be Xed out and a 4 added.
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W5USMC wrote: