This stock adapter for the full auto M11/9, M11/NINE or M11A1 380 gun will allow you to use a stock or brace that uses the 1913 Picatinny Rail spec. The SIG SAUER Telescopting/Folding Stock, MCX, MPX is pictured and works well with this stock adapter. The stock adapter is made of carbon steel and parkerized in the traditional finish of the MAC series machine gun and comes with stock lock which secures the stock adapter firmly into place.
Note: This stock adapter will not work on semi-auto guns. Stock not included.