Head down ar15 Firearms for sale https://kvarfirearms.com/product/ar1...rms-mag-promo/ AR15 Pistol 12.5" Master Series 223/5.56 -Head Down Firearms features Billet Upper HD Free Float M-Lok Handguard Tactical Kinetics Match .223 Wylde 4150/4151 CrMoV barrel H Buffer Surefire Muzzle devices now standard (ProComp and 3P Eliminator FH) Hiperfire EDT DM trigger SB Tactical SBA3 Pistol Brace ...