Just wanted to post some feedback for these guys / girls. Weeks back I had an issue with some brand new steel feed lip mags. I contacted BDM and not only did they swap them out, but because I opted to try the plastic feed lips (heard they may be a little less picky about ammo) they included an extra mag to make up the cost difference on the steel vs plastic feed lip mags!
Thanks again to Racheal and Bruce! Black dog is solid, and I'll definitely continue supporting them!