Description: The Heart Of Every Bushmaster™, M4 Patrolman’s™. Partnering with Franklin Armory ® to add their Binary Firing System III ® to Bushmaster’s™ all-new rifles.  The BFSIII® is a three-position trigger, allowing the third position to fire one round on pull and one on release.  Specifications: – Caliber 5.56 NATO (.223 REM) -16″ Barrel with a 1:7 Twist Rate – Overall length: 32.5 – 36″  – 6.09 LBS w/o Magazine  – M4 Style Handguard – Flip-UP Rear Sight  – Salt Bath Nitride MPI Bolt Carrier Group – A2 Birdcage Flash Hider 1/2 x 28  Trigger Positions:  Safe –Will not fire  Semi – Fires 1 round per pull Binary – Fires 1 round on pull and 1 round on release Features:  – Equipped with a Bushmaster™ 30 Round Aluminum Magazine -The gas system is carbine length -6 Position collapsible stock for ease of adjustment and precise fit -7075 Forged A4 Flat top, with detachable carry handle – F-Marked sight base for sight alignment, providing correct carbine sight alignment -BFSIII® Trigger allows for competition, tactical and recreational shooters   Proudly Made In U.S.A.  BFSIII® is NOT for civilian sales in CA, DC, IA, NJ, NY, HI, DE, RI, FL, MD, CT, or WA.