Not worth it - Timber Creek AR Mil-Spec Buffer Tube

The color and finish on the outside are nice however the inside of the tube is not slick and machining marks a very visible. I compared this tube with my other ones using the same buffer and spring to switch from lower to lower and this tube is noticeably louder and less smooth than even the cheapest basic milspec buffer tube i have. The thread seem a bit soft even for aluminum.