Originally Posted by
rob_s
How did you get an AR15 LMT bolt? Did it come with the gun or you bought it separately.
The "F" may actually not be a mark as some don't mark them. what's more important is that it is the correct height. I'll make a change to the chart to be more clear when I repost it next.
The "F" should be in the forging. It is not marked later when machining.
Michael Kassnar
President, K.B.I., Inc.
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