450.00 Stevens 620 Pump Action 12 Gauge Browning Patent SLAMFIRE Capable Oshawa / Durham Region May 23, 2024 - 7:53 AM 3screwsloose NO TRADES. Stevens model 620 pump shotgun, 2 3/4 inch chamber. 30 inch barrel fixed full choke. Works and feeds A1. Bore is excellent bluing is good with some frosting on the right side of the receiver.