Smith & Wesson M&P15 AR-15 Complete Lower Receiver Parts Kit

The Smith & Wesson 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 we provide you with the rest. Kit IncludesBolt CatchBolt Catch PlungerBolt Catch Roll PinBolt Catch SpringBuffer RetainerBuffer Retainer SpringDisconnectorDisconnector SpringHammerHammer PinHammer SpringMagazine CatchMagazine Catch ButtonMagazine Catch SpringPistol GripPistol Grip Lock WasherPistol Grip ScrewPivot PinPivot Pin DetentPivot Pin Detent SpringSelectorSelector DetentSelector Detent SpringTriggerTrigger GuardTrigger Guard Roll PinTrigger Pin, Trigger Spring