SANTAN TACTICAL-STT-15 BILLET Receiver set Ballistic Advantage 17.7 BA Hansen barrel, gas block and gas tube Mission First Tactical - butt stock Vortex optics -PST Viper 1x4x24 American defense QD scope mount Accu-tac bipod American Trigger-AR Gold drop in trigger SLR Rifleworks-SLR solo 16.5 M-LOK rail Battle arms- Take down pins Seekins- Safety selector Next level armament-NLX223 Charging handle, NLX-5 Helix hider, NLX223 BCG Blazer DLC Rear grip -tactical_dynamics_llc