This is a Allen Single Shotgun known as the Pistol Grip, model 10801.
The Pistol Grip Shotgun Case by Allen was built specifically for shotguns that have a pistol grip. This shotgun case has rugged Endura fabric construction with two external hook and loop closure pockets and one zipper closure pocket. This pistol grip shotgun case was designed to fit most pistol grip shotguns. Another key feature is that this pistol grip shotgun case is lockable.
Features:
Endura Fabric
Hook & Loop Closure Pocket
Fully Lockable