PA Defense Consultants. Some of you may have met these guys. They have been at the Monroeville gun show a few times. They always had a cuople of post 86 (I assume) H&K's and M16s/M4s. About the only guys selling quality stuff for your AR at that gunshow. Just figured I would give them a bit of free publicity since I dont think they are too well known. Also have an actual store location too. Mabey PDC will drop in and give us some more info.