Multiple Manufacturers 16" Upper Receiver .300 AAC Blackout
This AR-style barreled upper receiver assembly is chambered in .300 AAC Blackout (7.62x35mm) and configured with a 16" barrel and a free-float KeyMod (KeyMod-style) handguard with a full-length top Picatinny rail.
This unit is provided without a charging handle or bolt carrier group.

