Use the pistol grips on Mossberg 500 shotguns. Replaces the standard butt stock and pistol grip are then installed. The Stock Adapter no longer requires a mounting screw for installation.

A muzzle brake or recoil compensator is a device connected to, or a feature integral to the construction of, the muzzle or barrel of a firarm or cannon that is intended to redirect a portion of propellant gases to counter recoil and unwanted muzzule rise.