The Advanced Technology Int. Shotforce Shotgun Stock fits Maverick 88 12ga & 20ga (proud fit) Mossberg 500/535/590/835 12ga & 20ga (proud fit) Remington 870 12ga & 20ga (proud fit) American Tactical MB3 and Winchester 1200/1300 12ga & 20ga (proud fit). It is a six-position Adjustable TactLite Shotgun Stock w/ X1 Recoil Reducing Butt-Pad. The TracLOCK system provides smooth secure stock adjustments and eliminates the horizontal and vertical movement of the stock on the buffer tube and eliminates the need for a secondary locking mechanism. The length of pull is 12 1/8-15.Made in USA.