Includes: Receiver Block with SAW style pistol grip (#AKRBS), Skeleton Stock (#AKFX(length)), 1/2 in. Recoil Pad (RP1/2), 1 1/4 in. ambi sling mount (#UM 1.25) and all hardware needed to install this stock. No modifications to your Saiga necessary. Fixed stock kit does not include Folding Mechanism (#FSM). Length of Stock is measured from the back edge of the receiver block to the end of the stock butt, with recoil pad installed.