This package includes our Rear Stock Adapter, AR/Tube Folding Adapter, longer bolt, and an Adjustable 6 Position (M4) Rear Stock. The adapter can be positioned to fold to the left or the right and works with your OEM AK grip or aftermarket type AK grips.*New grip block on the underside of the adapter for added strength to secure the grip** Mounting instructions included, no drilling or welding. Measures from 10" up to 13.75" fully extended. Please call with any questions.