850.00 Black Creek Labs MRX Bison 5.56/.223 12.5" - unfired Medicine Hat May 8, 2024 - 4:41 PM barkhad36 BCL MRX Bison 5.56 NATO 12.5" barrel bolt action rifle. Unfired. Never found the time to take it out and use it, so it might as well go. I did replace the bolt catch with a new one, as it is a known potential issue.