Really dirty gas tube and... - Aero Precision Melonite Gas Tube

This gas tube came to me so carbed up. It looked like it was heavely used. Didn't expect that from Aero. Especially when i bought the same tube only a month ago with a flawless finish. I really didn't feel like returning a gas tube, so i cleaned the tube with some clp, and it looked a lot better. I thought i was in the clear... until i tried to pin the gas block. I don't know why, but the pin that was included was being very stubborn. Would not go into my aero adjustable gas block. After getting some pliers and pinching the roll pin a bit, I was able to get it in. This is my first bad experience with aero. They usually do very well.