The First Pump Action Shotgun: The Complete Story
In 1882 the first pump action shotgun was invented. It was called the Spencer-Roper shotgun and was manufactured by Spencer.
Best Shotguns of All Time - Guns and Ammo
Mossberg 590M Heat Shield Mag-Fed Pump-Action Combat/Tactical Shotgun: Up to 20 rounds of 12-Gauge Firepower, and Quick Full-Capacity Reloads! (Videos!) – (DR): An online tactical technology and military defense technology magazine
The Break Action Shotgun: Why It Will Never Die
The First Pump Action Shotgun: The Complete Story
How to Use a Pump-Action Shotgun - Lucky Gunner Lounge
The First Pump Action Shotgun: The Complete Story
Best Pump Action Shotguns: Top-Rated Picks for Your Needs - Black Flag Armory
The 10 Best-Selling Pump-Action Shotguns in America - 24/7 Wall St.
Celebrating 40 years of the Browning BPS.
Winchester Model 12 Pump Shotgun Review
Lever-Action Shotgun: Past, Present And Future - Gun Digest
12G Pump Action, Generation Zero Wiki