Upper receiver is forged from high-grade 7075 T6 aluminum for strength and durability, then final machined to USGI or better tolerances. This item is designed to be used for building a custom AR rifle with a piston style gas system.
M4 feed ramp cuts ensure reliable feeding.
This is a 100% Machined Stripped Upper Receiver. It does not include any internal parts or dust cover door.
NO FFL REQUIRED