Wolf A1 T91 Upper Receiver Assembly, 5.56mm NATO, 16" Barrel (Gas Piston)
Wolf A1 T91 complete upper receiver assembly chambered in 5.56mm NATO with a 16" barrel. This is a gas piston-operated upper designed to pair with a compatible AR-pattern lower receiver for a finished build.
Features include a full-length top Picatinny rail, protected front sight, and polymer handguards. Bolt carrier group and charging handle are included.