The "No Comply" Mil-Spec Buffer Tube is a Mil-Spec 6-position buffer tube with "No Comply" laser engraving on it. It's a component used in AR-15 builds. Here are the specifications for this product:
Length: 7.25 inches
Please note that this buffer tube includes only the tube itself with the "No Comply" engraving and does not come with any other parts or components.