These kits are designed with an ergonomic, finger-grooved, textured grip for maximum control and comfort. Rear grip includes an integral top-mounted sling loop and slim style. Kits include adapters and hardware. Fits Mossberg 500, 590, Remington 870 and Winchester 1200, 1300. 12 Gauge. Notes: The forend included in this package is compatible with: (1) Mossberg Shotguns with a removable forend, any Mossberg Shotgun newer than 2006 should be checked to insure that it has a removable forend. (2) Winchester Forend Tubes with a Minimum Length of 6 A 1/4 Inches are Required for use of this Product.