This fantastic rifle from Franklin Armory is genuinely one of a kind. This new for 2020 M4 rifle features American made components and is manufactured to the strict quality control measures Franklin Armory is known for. This M4 starts life as a standard FAI-15 lower receiver, which includes, yes, you guessed it, the BFSIII Binary Trigger System pre-installed and tested from the factory! The upper receiver is constructed of 7075 T-6 aluminum and features a 16" 1:7 twist LTW Contour barrel that is incredibly accurate. A 15" M-LOK FST rail is included as well and is ready to mount any accessories of your choosing. Rifle ships complete with (1) 30rd magazine.