The Troy Industries Enhanced Lower Receiver Parts Kit includes components needed to assemble a TROY Industries Lower Receiver or similar mil-spec lower receiver. The kit features a TROY Control Grip. Includes:Troy Control gripTriggerHammerTrigger pinBolt releaseBolt catch springBolt catch plungerSlotted pin springBuffer detentBuffer detent springReceiver end plateCastle nutSelector detentSafety selectorSafety selector springMagazine releaseMagazine release buttonMagazine release springPivot pinTakedown pinTakedown detentTakedown detent springDowel pinCoiled pin springTriggerguardGrip screwGrip screw washer