http://srcarms.com/wordpress/?page_id=7 I recently purchased a couple of Sharps Relia-bolt's. Part of what sold me was the fact they are using S-7 which is a shock resistance high end alloy that is around 75% stronger than Mil spec. I don't know how I feel about the redesigned lug though. My first thought is its a solution in search of a problem. There claim is that the new lug will blast through crud and lock in battery where a conventional bolt would hang up. I was not in the military, have never wielded a firearm as combat tool so my experience is limited to say the least but with modern high quality DI AR's this does not seem to be a wide spread problem? I know there are piston converts and believers that think DI guns are a cesspool of filth and carbon but my (limited) experience has been that its not a problem to fire a thousand rounds between a quick hose down with no reliability concerns with only a "real" cleaning every several thousand. ( I almost never go that far but I have with no issues) Of course I am talking about relatively high end AR's with quality ammo. I read a discussion with John Noveske back in the day when the piston rage was in its infancy. The interviewer ask him when they would be joining the piston market, He said never, It made heavier firearms that required specialized parts which attempted to solve a problem that didn't exist. (that is paraphrased, that's not a quote, just the jist of what he was saying best I can remember) That kind of stuck with me , I was thinking I had to have a piston gun at the time. Anyway what is your take? is it a gimmick? A revolutionary break through? I have quality BCG in all my AR's as I believe they are the heart of the platform, If its worth owning, its worth a $200 BCG. I bought of couple of these I plan to run in my "shooters" for a long term test. I'll report back as I feel the need but I am still curious what the general feeling is.