Testing interest, looking to sell or trade a bnib Christensen Arms carbon fiber AR-15 barrel. It's 16inchs, has a factory gas block and tube installed, and is chambered in .223 wylde. It has never been installed, bought it for a project that I never started. Open to either $600 cash or $700 in trade. Call or text 956-605-4829 with offers or questions. I will not ship and you must meet FTF in DFW area.