Binary® AR-Essential Equipped M4-Built Lower Receiver from Tier-1 Outfitters, LLC near White Lake, Michigan, USA

 The Frankilin Armory BFSIII M4-BLR is  a complete, ready to use lower reciever that cuts out the hassle of assembly.

Whether your building your first AR or your fifth, having the binary trigger already installed and test tested from the factory saves time and fustration. 

$350 plus tax