Uh yes. Your friend sucks and your story says as much. Q also sucks.
I feel bad for TBAC, they've only invited more of the general public to misuse their products than normal. They don't just ignore their customers like Q which means they're in for a lot of new headaches.
Had a rifle at my gunsmith getting a blue print on a 700 action. Apparently, he over torqued the Bottle Rocket onto the Cherry Bomb. Could not get the Bottle Rocket off by hand so I put a 1/2" socket on the end of it. The Cherry Bomb came off with the Bottle Rocket and is now stuck. I have...
www.snipershide.com
So after shooting 400 to 500 rounds at the range today with my Nomad attached. It was close to smoking hot. I let it cool some just enough to be able to grab it with an oven mitt. It wouldn't budge
www.ar15.com