FA BFS EQUIPPED XO26B 5.56MM

The Binary Firing System Equipped XO-26-b features an 11.5 barrel and comes in 5.56 NATO (.223 Remington) The XO-26b ships to 01/FFLs and it is not an AOW. Consequently no NFA paperwork is required! Each XO-26 ships with a copy of the ATF approval letter signed by the Chief of the ATF Firearms Technology Branch.