Among the easiest ejector guns to open and close are the 680 series over unders and the Model 21 side by side. Some guns, like the Krieghoff, have very heavy top lever springs and may be too much for some shooters for thousands of shots. A 680 series Beretta can be made into a real pleasant gun by clipping a turn off the ejector springs. This also makes it very unlikely to break an ejector.