I bought a used upper from a gun show but it came with no BCG. I have ordered a new one from gunbroker. But since I a putting a new BCG on a used upper do I need to check the head space with go and no go gauges?
Posted: 11/29/2012 7:09:30 AM EDT
[#1]
yes, even if its a new upper and a new bolt it's a good idea to check headspace
