The Reformation® RS11™ comes with a straight lands and grooves11.5" barrel, equipped with an adjustable stock, low profile gas system & Magpul sights. BFSIII™ is NOT for civilian sales in CA, DC, IA, NJ, NY, HI, RI, FL, MD, CT, or WA. The 11.5” model is restricted in the following states: CA, CO, CT, HI, MD, MA, NV, OH, OK, RI and the territory of Puerto Rico. Barrel Length + Type 11.5” Reformation® Barrel Handguard/Upper 11.5" FSR™ Sights Magpul MBUS Twist 0x0 Charging handle Standard Bolt Carrier Salt Bath Nitride Trigger BFSIII™    Gas System Carbine Length Gas Block Low Profile Muzzle Device Triumvir™ Receiver Billet Upper Receiver Color Black Calibers .300 Blackout