New TS side charging Receiver/BCG combo! This billet upper fits any mil spec lower receiver. This combo includes a TS side charger BCG, A side charging bolt handle, A threaded receiver plug, and the TS side charging upper. This combo is perfect for a bolt action/Semi auto build or perfect for and ergonomic and unique work horse build. 7.62 X 39 / 6.5 Grendel type 1. *This does not fit the AR10 Platform.