If I'm not mistaken, yours like mine has the flat at the end of the bolt because it came with a sight on the barrel. The ones from the factory with the Lyman 54 installed did not have a rear sight. I'm getting ready to have the rear of my bolt drilled and tapped so I can add the Lyman 54 on it. If you do not have the 54, good luck on finding one. Scarce. I was lucky but someone here might have a extra.

Look at the pictures in this link, it will explain.
https://www.24hourcampfire.com/ubbth...s/8330810/Lyman_54_sight_attached_to_a_S

Steve

Last edited by Sbrown; 04/22/14.
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