The AR-STONER T-Series Lower Parts Kit for the AR-15platform is the perfect choice if you are looking to build your next custom fully AR-15. This kit provides all the mil-spec parts generally used in an AR-15 build, with just a little extra flair. This Complete Lower Parts Kit is a convenient way to get all the pieces needed for an AR-15 lower, while still putting your own spin on it. Kit IncludesForward assist assemblyGen 2 ambidextrous safety selector assemblyDust cover assemblyExtended takedown and pivot pinsBolt catch assemblyAmbidextrous mag catch assemblyAssorted springs and pins