The Advanced Technology Int. Shotforce PGS is a 12ga and 20ga (proud fit) shotgun pistol grip stock with an X Series recoil reducing butt-pad. It fits Maverick 88 12ga & 20ga (proud fit) Mossberg 500/535/590/835 12ga & 20ga (proud fit) Remington 870 American Tactical MB3 and Winchester 1200/1300 12ga & 20ga (proud fit). The length of pull is 14. It is easy to install and includes adapters for all supported models. Made in the USA.