I bought the LRB kit and it is as advertise. Good serviceable parts, mixed USGI and new commercial. The new commercial parts are the gas cylinder, flash hider, op rod, & op rod spring.
The trigger assembly I received is USGI mix master of Winchester housing and the rest are HRA parts. Also the trigger is already set at 4.5 lbs on the one I received.
The stock & and hand guard are synthetic, well used but serviceable. Front and rear sight are good, the stripper clip guide may need to be repark. NO rust on any parts.
LRB shipped my order out the same day, in the severe snow storm. Overall I am happy with my purchase.
I think CMP parts kit are better, but it does cost $130.05 more. I did order a wooden stock from CMP for $41.95 with shipping and it has all metal with it, (no hand guard though)
There are more discussion on this subject further down this area, maybe early December.