Are you looking for a way to switch up your AR-15 build, but you don't want to buy an entirely new rifle? At Delta Team Tactical, we carry the most powerful, durable, and affordable AR-15 and LR-308 upper build kits. With an easy swap, you can turn your rifle into an entirely new gun. We carry upper build kits for a wide range of bullet sizes, from .223 Wylde and .300 blackout to 7.62x39 caliber and 9mm uppers, from high-quality tactical brands like Davidson Defense and more. Made from aluminum, in combination with tough steel barrels, our upper build kits are built to last and are perfect for use at the range or out hunting. We offer AR-15 and LR-308 upper build kits both assembled or unassembled, so you don't have to worry about receiving a big box of confusing parts in the mail. Let the professionals at Delta Team tactical take care of it for you! Our parts are all proudly made in the USA.