Type: BB air pistol. Manufacturer: Umarex. Model: SA177. Materials: Metal Slide and Polymer Frame. Weight: 1.5 pounds. Barrel: 4.1 inches, steel, non-rifled. Propulsion: CO2 x1. Action: Semi auto blowback, double action. Ammunition Type: Steel BBs 4.5mm. Ammunition Capacity: 19 rounds FPS: 400 I really like this Umarex air gun mostly because they put a lot of attention into the detail making this Glock Replica Blowback BB Airgun a treat to own and shoot. It's priced right so just about anyone can own one and once you get used to the trigger break point it makes for a decently accurate action plinker. Read full article here: https://www.replicaairguns.com/2010/8/17/umarex-sa177-co2-bb-airgun-field-test.html Buy BB Guns in Canada: https://www.replicaairguns.ca/bb-guns Buy BB Guns in the US: https://www.replicaairguns.us/bb-guns