midnight_90Like new, unfired BLEM AAC 12.5 NSW contract barrel. Chambered in .300blackout. Tapered shoulder and 9/16 thread. blem due to typo on marking “ACC” instead of “AAC”. Looking for: HK MP5K Threaded barrel in 1/2x32, HK P9S threaded barrel in 1/2x32, HK 417 parts
