Non notched buffer tube - Bravo Company MFG MK2 Receiver Extension

While I understand BCM prides it's self on high quality milspec parts, meaning whatever they sell will be the best original MILSPEC, I would have expected the buffer tube for this systen to have had a buffer pin retainer notch since this is not milspec and is more of a novelty item. The retainer notch would have made alignment during installation a breeze. Every other A5 tube I have bought is notched and is half the price. The inside of the tube was also extremely gritty/rough and had to be polished. I do not recommend this tube. There are better A5 tubes for half the price.