Our Red AR-15 Lower Receiver Parts Kits (LPK's) include everything you'll need to put together a well-functioning and sleek AR Build. All parts in our lower parts kits including springs are 100% USA Manufactured. All our Red parts in these kits are custom cerakoted.The standard LPK includes our replacement Polymer A2-style pistol grip and polymer trigger guard.Complete AR15 100% USA Kit Includes:Standard AR-15 Pistol Grip (Black)Pistol Grip ScrewPistol Grip Screw Lock WasherRED Trigger Hammer RED Polymer Trigger GuardSemi DisconnectorDisconnector SpringRED Semi Safety Selector SwitchSafety DetentSafety SpringRED Bolt CatchBolt Catch Buffer/PlungerBolt Catch SpringBolt Catch Roll PinRED Magazine CatchRED Magazine Catch ButtonMagazine Catch SpringRED Front Pivot PinRED Takedown PinPivot Pin DetentPivot Pin Detent SpringTakedown Pin DetentTakedown Pin Detent SpringHammer SpringTrigger SpringHammer PinTrigger PinBuffer Retainer PinBuffer Retainer Spring