2+3 doesn't equal 4, evidently.
I like the BCM upers because they're machined slightly undersized, so you have to thermo fit them to the barrel. I dug out my lapping tool and discovered it would be an interference fit in a BCM. Thought about warming th BCM but I'd have to keep it warm or the lapping tool would seize in there and keeping the heat on would also enlarge the tool.
While I'm only putting a Faxon barrel in it, I do like to make everything fit as precisely as possible even if it's not a lilja or bartlien.
I like the BCM upers because they're machined slightly undersized, so you have to thermo fit them to the barrel. I dug out my lapping tool and discovered it would be an interference fit in a BCM. Thought about warming th BCM but I'd have to keep it warm or the lapping tool would seize in there and keeping the heat on would also enlarge the tool.
While I'm only putting a Faxon barrel in it, I do like to make everything fit as precisely as possible even if it's not a lilja or bartlien.
