Smith & Wesson Complete Lower Parts Kit, Black - 1085634

The M&P AR-15 rifle complete lower parts kit includes everything you need to build your finished lower receiver. All you need is a stripped lower receiver and stock assembly of your choice, and Smith & Wesson provides you with the rest.Includes:Bolt CatchBolt Catch PlungerBolt Catch Roll PinBolt Catch SpringBuffer RetainerBuffer Retainer SpringDisconnectorDisconnector SpringHammerHammer PinHammer SpringMagazine CatchMagazine Catch ButtonMagazine Catch SpringPistol GripPistol Grip Lock Wa