M4C, somewhere on there, they were talking about the "operator" as a 10" gun. With the reliability package and barrel work (said he started with a 16" barrel) the price was $600. I thought it was way out of line but in another thread the $150 price was mentioned along with things he's thought to do for that amount. I'm guessing the $600 figure included the LaRue rail, barrel work, his own extractor, buffer weights, repinning the FSB and checking everything out along with probably a few things we have no idea about.

I couldn't find the original thread.

I run alot of Colt parts and for as hard as I run them (which isn't as hard as some), I've never seen the need but for $150, it's not a bad deal.