I don't have any other connection to the seller but he appears legit and the worth is undoubtedly correct thinking of the scope mount. He appears to own all the pieces such as the mounting block and spacer. Sign-0 Productions Firearms Training check it out at Sign-0.com Springfield Armory was https://collinhxriu.blog2learn.com/77566445/considerations-to-know-about-ebr-chassis-m1a