I just received my second Budget BCG (looks AWESOME BTW).
However this one after taking apart, had no O-ring insert. I don't expect/want AIM to bother with an O-ring,etc. Such a little part it isn't worth anyones time.
That said, just wanted people to notice it if they want one put in.
And #2. I don't plan on installing one post-haste, no rifle for it and I ran two uppers for a LOT of rounds without an O-ring.
That said....if I needed/wanted to get one without waiting for a new O-ring, could a normal synthetic O-ring be used? In a pinch until a D-fender or something was ordered?
I will admit that I am an AR-newb so....I had to ask