OK, here's the history behind GunSmoke. Back in the early days of the first generation of this board, about the time frame of the first gun ban, everyone was scrambling for parts. There was NOWHERE near the variety of products and suppliers that there are now.
When Armalite, Bushmaster, and Colt were out of parts, or they were just sky high crazy expensive, GunSmoke had deep deep stock. They made a small fortune charging just under the going street price (which was a higher than retail at that time due to the rush of the ban). They sold most of their stuff to members and posters here on ARFCOM.
Well, as the parts started to come in, the post numbers racked up, and QUICK. Seems that they were NOT A, B, or C parts, but reject junk. Complaints followed, words were exchanged, and then it got
UGLY UGLY UGLY.
The end result=lots of good people got taken on bad deals for bad parts and GunSmoke was banned from the board for life. The same thing happened on a few other boards, for all the same reasons, too.
I have no idea what they do now, as they've basically been a fringe element in the AR world ever since. YMMV. You pays your money, you takes your chances. Figure if someone isn't selling here, either they're too stupid, or too shady. Take a look at the top of the page here, even ArmaLite and Bushmaster are board sponsors. They know which side of the bread their butter is on!
Tom