I installed a 11.5" with a yhm upper & bolt. About 300 rds fired. No issues. Mind that it's not chrome-lined, but that's not a huge problem given the absence of corrosive 5.56 on the market. And that a restr. rifle doesn't stay very long outside in the rain...
I have heard, but not seen for myself, that these barrels were parked without a plug in the gas port, which allowed the park into the bore.
Because of this rumor, that no one seems to be able to definitively confirm or deny, I refuse to buy one of these barrels.
Um, instead of relying on rumor why don't you guys e-mail S&J and ask them? They are very good to deal with and make excellent products.
Um the question was posed and ignored. Um I stated that the rumor was neither confirmed nor denied. Um.



























