Are there any shops in MD that sell (or more important, have them in stock) LPKs stocks and tubes? I'm about to build a lower and need to find the parts.
Keep watching the classifieds. johnnyb2 has posted numerous deals on AR parts. I have made at least 1 purchase (might have been 2) from him. No issues at all, I would consider him a reputable seller.
Gun Connection usually has a pretty good selection. Picked up a CMMG lower parts kit, some KNS anti walk pins and some other stuff last week and they had alot of other parts in stock. Honestly though I'm all about supporting the local shops but most of them are more expensive then buying online. For example primary arms has the KNS pins for 19.99 right now when usually there like 29-35.