07-07-2021, 12:43 AM
Barrel extension OD can vary dependent on barrel manufacturer, but reputable manufacturers keep them within tolerances that pose zero problems with BCM thermal fit uppers. The BCM receivers I have used have been spot on. Anderson and Aero uppers have not held the same consistency as my BCM upper receivers. The Aero and Anderson upper BCG channel has also varied quite a bit as other brands compared to BCM. When QC is consistent, "then yes"BCM is a higher quality of manufacturing..There is an advantage to thermal fit barrels, "but if you doubt this" then you can explain it to John Paul the next time you talk to him...
There is a reason I use certain brand parts, and avoid others..Religion has nothing to do with it....
There is a reason I use certain brand parts, and avoid others..Religion has nothing to do with it....