Radical Firearms AR15 upper chambered in 6.5 Grendel. Has a 20" stainless steel barrel, Pepperpot muzzle break, 12" freefloated MLOK handguard, 6.5 Grendel bolt carrier group, charging handle, also will come with three 10rnd 6.5 Grendel magazines. Got this as part of a trade, I believe the previous owner said it has around 200rnds fired through it. These go for about $550 New.