My .458 SOCOM, 6.5 Creedmore Upper, 264 LBC/6.5 Grendel, .224 Valkyrie(Needs a muzzle brake. The 6x45 needs a handguard but the barrel and barrel nut are assembled along with the gas tube and gas block. The barrel nut was put on from a carbine handguard I need a rifle length kit. The barrel nuts are the same. I also have the barrel and bolt for a .25-45 upper that can chill for a while. I have a common lower for the AR15 uppers. Looking good in the hood. Yes Moon Pie there will be pictures.