Are you looking for the best USA made upper receiver parts kit for your AR-15? Order our top quality USA made AR-15 upper receiver parts kit today! Our top selling AR 15 Upper Receiver Part Kits are 100% free from defect and will serve your rifles purposes for as long as you need it. We also proudly have the most reliable 7.62 x 39 upper on the market. Be sure to check out our other top sellers including our popular AR-15 billet upper receiver, Forged AR 15 9mm Slick Side uppers, Stripped A2 Upper Receiver, or our highly demanded State of Jefferson upper receiver.