I don't have any other relationship to the seller but he appears to be legit and the value is certainly proper considering the scope mount. He seems to get many of the sections including the mounting block and spacer. Sign-0 Productions Firearms Education check it out at Sign-0.com Hand to https://sage-international-stock64173.frewwebs.com/30089008/the-ultimate-guide-to-m1a-ebr-chassis