Pure junk, stay away - TacFire Ar10 Buffer Tube Kit/Reg End Plate

I shouldve spent a little more for an Aero kit. The finish on the buffer appears to be paint. Its already scratched to heck, despite the fact the gun hasnt been fired yet. The aluminum is very soft, and got marred immediately by the end plate and detent while tightening. It also will not work with the magpul prs, prs lite, or presumably any other fixed stock because they decided to take creative liberties with their design- NOT MIL SPEC. This was for a budget build, and I figured I could save a few bucks with this product, but boy was I wrong.