Includes: Receiver Block with SAW style pistol grip (#AKRBS), Ultra light Modular Stock (#UL-M),1/2" Recoil Pad (#RP1/2), CAR stock adapter (#PN), 1 1/4" 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). Stock length with A1/A2 extension tube is 11.25" long. Length of stock is measured from the front edge of the CAR adapter to the end of the stock butt, with recoil pad installed. The butt clamps to the outside diameter of the extension tube allowing the extension tube to be cut to any length for a custom fit. Further, once the extension tube back end has been cut off, small tools or a cleaning kit can be stowed inside of it.