[Justinmd]

Do not believe anything you see in gun magazines. Much of it is true, but you don't know which parts. This is coming from someone who's rifles have been reviewed by gun mags.

For carrier tilt, there's several ways that companies try to deal with the off-axis force resulting from pistons on an AR. That took a lot of companies by surprise, I'm not sure if LWRC is included. Remember, LWRC used to be Leightner-Weis and was a small player. My buddy has an early one which broke some time ago, but I'll ask him if there's wear from carrier tilt. It's not the only issue in retrofitting a piston to an AR, and really a piston is a fix for a relative non-issue. Major improvents could have been made to the bolt, extractor, and recoil system, but that requires much more effort and R&D money.