Franklin Armory® NFA controlled short barrel rifle. ALL NFA RULES APPLY. (All Sales Are Final On NFA Items, No Returns)   Barrel:Chambered in 5.56 NATOSalt Bath Nitride Chamber, Bore, & Finish11.5” Barrel1/9-Inch Twist in 5.56 NATOLow Profile Gas BlockPistol Length Gas SystemTRIUMVIR™ Flash HiderFranklin Armory® FSR  (M-Lok compatible) Upper Receiver:Franklin Armory® Libertas® Proprietary Billet Upper ReceiverMachined From 7075-T6 AluminumHard Coat Type III Anodized Full Picatinny RailForward AssistSalt Bath Nitride Bolt Carrier GroupMagpul MLOK MVGMagpul MBUS Front and Rear Sights Lower Receiver:Franklin Armory® Libertas® Proprietary Billet Lower ReceiverMachined From 7075-T6 AluminumHard Coat Type III Anodized BILATERAL Push Button QD Sling MountSerrated Memory Index Point for Shooting FingerIntegral Cold Weather Trigger GuardFlared Magazine Well for Quick Magazine ChangesSpecialized Tension Screw - Eliminates Upper/Lower PlayFranklin Armory® BFSIII® TriggerErgo Ambi Sure Grip Magpul MOE SL-K Stock Not for civilian sales in: CA, CT, DC, DE, FL, HI, IA, MD, NJ, NY, RI, and WA