Tacfire Mossberg 500 Shotgun Pistol Grip w/6 Position Stock Black. Tacfire Mossberg 500 Shotgun Pistol Grip w/6 Position Stock Black MSG004 Specifications for Tacfire Mossberg 500 Shotgun Pistol Grip w/6 Position Stock: Manufacturer: TacFire Condition: New Features of Tacfire Mossberg 500 Shotgun Pistol Grip w/6 Position Stock: Tacfire Mossberg 500 Shotgun Pistol Grip w/6 Position Stock Black MSG004 Package Contents: Tacfire Mossberg 500 Shotgun Pistol Grip w/6 Position Stock Tacfire MSG004: Mossberg 500 Shotgun Pistol Grip w/6 Position Stock Black