Originally Posted by
yellowfin
Ah, so the barrel extension/BCG is common then, correct? That would be rather useful. If this works well then I could easily see myself putting together a good 6.5 or .260 upper for it. Let's say I did that--get a good barrel like from Criterion, put an adjustable gas block on it, etc. How much accuracy could I get out of it on having a top shelf barrel and good match ammo? This is something I don't know very much about, how much goes into a gas gun action that makes it more accurate.