7.5 inch STAINLESS STEEL 5.56/.223 KEY MOD build kit minus bcg and charging handle with billet upper

7.5 inch STAINLESS STEEL 5.56/.223 wylde barrel upper build kit minus bolt carrier group and charging handle comes with the following: billet upper with forward assist and dust cover already pre installed 7.5 inch 5.56/.223 STAINLESS STEEL 1/7 twist pistol gas length m4 barrel threaded 1/2x28 steel low pro gas block roll pin pistol gas tube 7 inch free float KEY MOD hand guard with all mounting hardware crush washer and A2 muzzle break