I have no other connection to the vendor but he seems legit and the cost is absolutely proper considering the scope mount. He appears to own many of the elements including the mounting block and spacer. Signal-0 Productions Firearms Instruction check it out at Signal-0.com Hand to set off place https://sage-ebr-chassis03400.newsbloger.com/30057958/the-fact-about-mk14-ebr-stock-that-no-one-is-suggesting