If I post a graphic of the left side of the upper receiver, do you have the ability to draw such marks on the graphic and then re-post it so we have an idea of how these marks look and where they are located?
here is a sample left side with no marks...
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regards, -John S
"...We hold these truths to be self-evident that ALL men are created EQUAL and are endowed by their Creator with certain UNALIENABLE rights, and among these are life, LIBERTY, and the pursuit of happiness..."
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