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Spotter’s Report: IBM AO Carbine Receive Ring |
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m1a1fan
Hard Corps Got Para? Joined: Jan 01 2016 Location: Virginia Status: Offline Points: 1736 |
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Posted: Feb 09 2019 at 6:51pm |
The following was observed on an AO IBM carbine. In addition to the multiple stamps, it’s strange to see different fonts on the same receiver ring like the A and E. They look like IBM’s and AO’s, but not sure how could that be possible?
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David Albert
Hard Corps Status Quo Challenger Joined: Dec 27 2015 Location: Ohio Status: Offline Points: 1003 |
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I'm wondering whether this may have been where a die was changed out. It looks to have chattered at least twice on each die.
David Albert dalbert@sturmgewehr.com |
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NRA Life Member
Past Pres., The American Thompson Association Amer. Society of Arms Collectors OGCA/TCA/Carbine Club/GCA/IAA SAR Writer Author - The Many Firearm Designs of Eugene Reising Eagle Scout |
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m1a1fan
Hard Corps Got Para? Joined: Jan 01 2016 Location: Virginia Status: Offline Points: 1736 |
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Yup, that is what I was thinking as well. CCNL 345-6 shows the receiver ring fonts for IBM and AO and they look different. The flat top 3 is shown as IBM. The top A in Carbine looks like IBM. The serif 1 is shown as IBM. The bevel is marked AO. Hard to tell for sure with such a poor stamping. How would one determine which stamps were made first?
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