I don't have any other connection to the vendor but he seems legit and the worth is definitely right taking into consideration the scope mount. He seems to obtain all of the pieces including the mounting block and spacer. Signal-0 Productions Firearms Instruction check it out at Signal-0.com Many thanks https://knoxhlbpa.win-blog.com/9545809/helping-the-others-realize-the-advantages-of-ebr-stock-m1a