Finding quality components for AR builds is becoming more of a test of patience these days, and although not expecting things to get better, figured I'd reach out... I have a couple of builds in process, missing only stripped upper receivers at this point. Preferably, requirements would start with Cerro Forge, M3 flat top with M4 feedramps, and quality manufacturing in fit and finish. Unmarked is also required, my own personal preference. However, slight variations in color between upper and lower are not a concern. BCM is a given, as they have exceptional quality control, unfortunately they've been out of stock for months now. CDNN is selling an Adcor with same specs, however I am not familiar with their QC. While I do know they hold government contracts, anyone familiar with fit and finish of Adcor Defense? I have also considered Palmetto State Armory- aside from current out of stock, could not find details as to who forges their uppers, whether they are finished on site or by the likes of L.W. Schneider... PSA is understandably tight-lipped with regards to specifics. Any insight provided would be much appreciated, I am anxious to get my build on. sent via Tapatalk Wanna kill these ads? We can help!