Our new AR stock adapter makes it easy to add a two bolt style (ACE) stock, Choate stock or our modular, custom billet rear stock to your M70/M92/M85, using our adapter between the grip and the receiver. Two threaded holes have 10/32 threads.New grip block on the underside of the adapter for added strength to secure the grip The longer, full length grip is standard with most AK guns and fits with our adapter. Please call with any questions. This part number for the FLAT MOUNT ADAPTER ONLY, Rear stock & other parts sold separately. This rear stock can be found in our REAR BUTT STOCKS section We also include longer grip bolts.