I have no other connection to the vendor but he looks legit and the price is absolutely ideal thinking about the scope mount. He seems to get all the elements such as the mounting block and spacer. Sign-0 Productions Firearms Schooling test it out at Sign-0.com Conventional M14 and M1A https://edgaryalzk.thenerdsblog.com/35118520/top-sage-ebr-chassis-m1a-secrets