Poor quality - Tiger Rock .750 Low Profile Micro Gas Block and Sliver Mid Length Length Gas Tube, Assembled (GTMB, GB01-B)

Upon opening the box I first noticed "made in china". I next noticed the roll pin was bent. Then I discovered it was bent because it's hole was not straight. I tried it anyway and discovered the set screw holes must be not of alignment as it would not attach to the barrel correctly. I tried anyway and after much effort (including a new role pin) it worked okay yesterday. I would never have purchased it to begin with if the original description had identified "made in china". Very discouraging and they should be ashamed for selling it.