06-13-2011, 02:50 PM
That's odd. I've never had a failure with my AR using numerous brands and bullets, but to answer your question, I've known quite a few people that have used the Adams piston. Almost all eventually go back to DI. They aren't a bad unit from what I understand. They just don't add anything but some weight to the system. You do have to worry the carrier tilt problem with piston systems also.