UMAREX LEGENDS M1A1 AIRGUN RIFLE .177 Pick up more than history when you pick up the full-auto Umarex Legends M1A1! Not only is this one of the coolest historical replicas done, it feels right, it looks right, and is guaranteed to be a crowd-pleaser. This open-bolt wonder features a 30 round magazine that houses (2) 12-gram CO2 cartridges and is equipped with sling mounts for your favorite historical sling. Sometimes called the "Chicago Typewriter" you'll recognize this historical gun shape from both wartime history and the big screen. It's so much fun to shoot, you might just want to get an extra magazine or two.