Up for sale is a complete PSA upper, with a 10.5" Carbine-Length 5.56 nitride barrel with a 1/7" twist, 9" Lightweight MLOK Upper, FA BCG, mil-spec CH, and a SIG SAUER ROMEO5XDR Gen II mounted on top. Approximately 900 rounds through the upper. Took off a build to toss something else on, and figured I'd rather just sell this upper off. Asking $500 OBRO