Poor quality parts, buyer beware, - Anderson Manufacturing Adjustable Steel Gas Block

I had high hopes for this gas block. I am using it on an AR-15 chambered in .300 blackout (hog gun). It installed easily and seemed like e decent quality, until I got to the range. As with any adjustable gas block, this one needed some adjustments from factory settings. It had my gun under gassed and would eject the spent casing, but would not cycle completely and chamber the next round. The trouble came when I went to adjust the gas, I couldn't make any adjustments because the adjustment screw was cracked. I have tried everything I can think of to make the adjustments I need, with ZERO success. Now I need to purchase a new gas block and hope the build quality is on point. Save yourself some trouble (and money) and buy a quality gas block from the start.