Many presume John Browning invented the first pump-action shotgun, but it was actually a little known engineer, Christopher Spencer.
Antique FRANCIS BANNERMAN/SPENCER Model 1890 Slide Action 12 Gauge
Pump Shotguns, Page 1 of 2
The Ruger Red Label: A Classic American Shotgun
Reviews & Tips for Hunters and Sportsmen, Page 21 of 58
Bannerman, model 1890, 12 ga. Black Powder pump shotgun
A Western Big Game Hunting Guide's 9 Favorite Guns
The Spencer Pump: America's First Pump-Action Shotgun
12 Tough & Reliable Multi-Purpose Pump Shotguns - Athlon Outdoors
TriStar Cobra III Field Youth Pump 410 Ga, 24 Barrel, 3 Chamber
The Coolest Ducks Unlimited Dinner Guns of All Time
GUNS Magazine Winchester Models 1897 and 12 - GUNS Magazine
The Best .410 Pump Shotguns