Our AK47 machined Billet Tactical rear stock with our easy mount rear stock adapter for the Century Arms C39 pistol. Adapter has been machined to cradle the rear of the receiver from moving side to side and offers easy mounting using the OEM sling hole. We provide the button head bolt, machined threaded internal block, Allen wrench, flat mount stock adapter and our Tactical rear stock.***PLEASE TELL US IN THE COMMENTS SECTION IF YOU HAVE A NEWER V2 or RAS47 MODEL, OR WE WILL SHIP YOU THE STANDARD C39 ADAPTER WITH THIS SET UP