I have a lower from Palmetto State and it came complete with a Palmetto State stock. I assumed (I did not purchase it from Palmetto State) the buffer tube assembly was provided by them also. While installing a single point attachment I noticed the inside of the buffer tube was rough, had ridges, not sharp, but identifiable. My other two AR tubes are very smooth inside. I called Palmetto State and it was determined that the tube assembly was not theirs. My question is, can I take a brake type hone and smooth out the imperfections? Will it make a difference? I'm not talking about removing any significant amount of metal, just smoothing it up. The lower supports my 300 Blk.