I had more than a few long guns where the webbing in question wasn't even there, and the rest where I took it out. It has no structural context and for the most part it can just get in the way of a good fit between the lock plate and bbl itself. If the integrity of the rest of the stock is intact, I'd just build the gun. However, if yer still in a quandary over this, send the images back to the seller for their answer.