Luth-AR Freedom Flag Commercial Carbine Buffer Tube 6 Position

A commercial diameter carbine buffer tube with six stock positions and a flag engraved down the side. Commercial and mil-spec tubes are not interchangeable, so check what your buttstock is cut for before ordering. Commercial tubes measure larger at the outside diameter and taper at the rear, and a mil-spec stock will not slide onto one.

Past the engraving it is a plain receiver extension. It threads into the lower, carries the buffer and the spring, and gives the stock its six positions of adjustment. Luth-AR builds buttstocks for a living, so the threads and the detent track are cut to match what the stocks expect.