modal3000Smith & Wesson Model 3000 Pump Shotguns (1982) Many American scattergunners were weaned on a pump shotgun. And the pump action is still a favorite. But you'll agree that aThe Model 3000+ GCP System Cutover Form, found in S-00-17-03 (Table 6-14), is used when installing, physically modifying, or after disarrangement of a Model 3000+ GCP. NOTE